criyle/codenet-compile-errors huggingface dataset:
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll N = 4e5+9;
ll n,k,q,tdfn,tot;
ll dp[50][N],vis[N];
ll B[N],LOG[N],used[N],F[N],pos[N];
vector<pair<ll,ll> > edge[N];
void rmq_init(ll n,ll num[])
{
    ll i,j;
    for(j=1;j<=n;j++) 
        dp[0][j]=num[j];
    for(j=1;j<=LOG[n];j++)
    {
        ll limit=n+1-(1<<j);
        for(i=1;i<=limit;i++)
        {
            ll x=i+(1<<j>>1);
            dp[j][i]=min(dp[j-1][x],dp[j-1][i]);
        }
    }
}
ll rmq(ll l,ll r,ll num[])
{
    ll m=LOG[r-l+1];
    return min(dp[m][l],dp[m][r-(1<<m)+1]);
}
ll sum[M];
void dfs(ll s)
{
    ll i,t;
    used[s]=1;
    ll tmp=++tdfn;
    B[++tot]=tmp;F[tmp]=s;
    pos[s]=tot;
    for(i=0;i<edge[s].size();i++)
    {
        t=edge[s][i].first;
        if(used[t]) continue;
        sum[t]=sum[s]+edge[s][i].second;
        dfs(t);
        B[++tot]=tmp;
    }
}
ll lca(ll a,ll b)
{
    if(pos[a]>pos[b]) swap(a,b);
    ll ans=rmq(pos[a],pos[b],B);
    return F[ans];
}
int main()
{
    ll i,a,b,w;
    LOG[0]=-1;
    for(i=1;i<N;i++)  LOG[i]=LOG[i>>1]+1;
    cin >> n;
    for(i=0;i<=n;i++) edge[i].clear();
    for(i=1;i<n;i++)
    {
        cin >> a >> b >> w;
        edge[a].push_back(make_pair(b,w));
        edge[b].push_back(make_pair(a,w));
    }
    sum[1]=0;
    tdfn=0;
    tot=0;
    memset(used,0,sizeof(used));
    dfs(1);
    rmq_init(tot,B);
    cin >> q >> k;
    while(q--)
    {
        cin >> a >> b;
        cout << sum[a]+sum[k]-2*sum[lca(a,k)] + sum[b]+sum[k]-2*sum[lca(b,k)] << endl;
    }
    return 0;
}

Compiler output:
a.cc:29:8: error: 'M' was not declared in this scope
   29 | ll sum[M];
      |        ^
a.cc: In function 'void dfs(ll)':
a.cc:41:9: error: 'sum' was not declared in this scope
   41 |         sum[t]=sum[s]+edge[s][i].second;
      |         ^~~
a.cc: In function 'int main()':
a.cc:65:5: error: 'sum' was not declared in this scope
   65 |     sum[1]=0;
      |     ^~~
Language: C++

//#define _GRIBCXX_DEBUG
#include <bits/stdc++.h>
using namespace std;

#define int long long

struct edge {
    int to;
    int cost;
};

// <最短距離, 頂点の番号>
using P = pair<int, int>;

int V;
vector<edge> G[100000];
int d[100000][100000];

int memo[100000];

void dijkstra(int s) {
    if(memo[s]!=0) return;
    memo[s]++;
    priority_queue<P, vector<P>, greater<P> > que;
    fill(d[s], d[s]+V, LONG_MAX);
    d[s][s] = 0;
    que.push(P(0, s));

    while (!que.empty()) {
        P p = que.top();
        que.pop();
        int v = p.second;
        if (d[s][v] < p.first) continue;

        for (int i=0; i<G[v].size(); ++i) {
            edge e = G[v][i];
            if (d[s][e.to] > d[s][v] + e.cost) {
                d[s][e.to] = d[s][v] + e.cost;
                que.push(P(d[s][e.to], e.to));
            }
        }
    }
}

signed main() {
    cin >> V;
    for(int i=0; i<V-1; ++i) {
        int a, b, c;
        cin >> a >> b >> c;
        a--;
        b--;
        edge e = {b, c};
        G[a].push_back(e);
        e = {a, c};
        G[b].push_back(e);
    }

    int q, k;
    cin >> q >> k;
    k--;
    dijkstra(k);
    int x, y;
    for(int j=0; j<q; ++j) {
        cin >> x >> y;
        x--;
        y--;
        dijkstra(x);
        cout << d[x][k] + d[k][y] << endl;
    }
    return 0;
}



Compiler output:
/tmp/ccUDmGMT.o: in function `dijkstra(long long)':
a.cc:(.text+0x25): relocation truncated to fit: R_X86_64_PC32 against symbol `memo' defined in .bss section in /tmp/ccUDmGMT.o
a.cc:(.text+0x48): relocation truncated to fit: R_X86_64_PC32 against symbol `memo' defined in .bss section in /tmp/ccUDmGMT.o
a.cc:(.text+0x5f): relocation truncated to fit: R_X86_64_PC32 against symbol `memo' defined in .bss section in /tmp/ccUDmGMT.o
collect2: error: ld returned 1 exit status
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
#define MAXN	100000
struct edge
{
  int v,n;
  ll w;
  edge():v(0),w(0),n(0){}
  edge(int vv, ll ww, int nn):v(vv),w(ww),n(nn){}
};
edge E[MAXN<<1];
int nE;
int front[MAXN+1];
void add_edge(int u, int v, ll w)
{
  int ne = ++nE;
  E[ne] = edge(v,w,u[front]);
  u[front] = ne;
}
int solid[MAXN+1];
ll d[MAXN+1];
void dijstra(int s)
{
  set< pair<ll,int> > q;
  memset(d, -1, sizeof(d));
  d[s] = 0; solid[s] = 1;
  q.insert(make_pair(0,s));
  while(!q.empty())
  {
    auto p = q.begin();
    int u = p.second;
    solid[u] = 1;
    q.erase(q.begin());
    for(int e=u[front];e;e = E[e].n)
    {
      int v = E[e].v; ll w = E[e].w;
      if((!solid[v]) && ((-1 == d[v]) || (d[u]+w < d[v])))
      {
        q.erase(make_pair(d[v],v));
        d[v] = d[u]+w;
        q.insert(make_pair(d[v],v));
      }
    }
  }
}
int main(void)
{
  int N = 0;
  int a = 0, b = 0;
  ll c = 0;
  scanf("%d", &N);
  while(N--)
  {
    scanf("%d %d %lld", &a, &b, &c);
    add_edge(a,b,c);
    add_edge(b,a,c);
  }
  int Q = 0, K = 0;
  int x = 0, y = 0;
  scanf("%d %d", &Q, &K);
  dijstra(K);
  while(Q--)
  {
    scanf("%d %d", &x, &y);
    printf("%lld\n", d[x]+d[y]);
  }
  return 0;
}


Compiler output:
a.cc: In function 'void dijstra(int)':
a.cc:32:15: error: 'struct std::_Rb_tree_const_iterator<std::pair<long long int, int> >' has no member named 'second'
   32 |     int u = p.second;
      |               ^~~~~~
Language: C++

#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <queue>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cctype>
#include <string>
#include <cstring>
#include <ctime>
 
using namespace std;
 
typedef long long ll;
typedef unsigned long long ull;
 
static const double EPS = 1e-8;
static const double PI = 4.0 * atan(1.0);
static const double PI2 = 8.0 * atan(1.0);
 
#define REP(i,n)	for(int i=0;i<(int)n;++i)
#define ALL(c)		(c).begin(),(c).end()
#define CLEAR(v)	memset(v,0,sizeof(v))
#define MP(a,b)		make_pair((a),(b))
#define ABS(a)		((a)>0?(a):-(a))
#define FOR(i,s,n)	for(int i=s;i<(int)n;++i)

typedef pair<ll, ll> P;

ll n, q, k, a, b, c, x, y;
vector<P> es[100000];
ll d[100000];

void dfs(int v, int pa, ll x) {
	d[i] = x;
	REP(i, es[v].size()) if (es[v][i].second != pa) dfs(es[v][i].second, v, x + es[v][i].first);
}

int main(int argc, char **argv) {
	cin >> n;
	REP(i, n - 1) {
		cin >> a >> b >> c;
		--a; --b;
		es[a].push_back(MP(c, b));
		es[b].push_back(MP(c, a));
	}
	cin >> q >> k;
	dfs(0, -1, 0);
	REP(i, q) {
		cin >> x >> y;
		--x; --y;
		cout << (d[x] + d[y]) << endl;
	}
	return 0;
}

Compiler output:
a.cc: In function 'void dfs(int, int, ll)':
a.cc:47:11: error: 'i' was not declared in this scope
   47 |         d[i] = x;
      |           ^
Language: C++

#include <iostream>
#include <cstdio>
#define MAX_N 100000
using namespace std;
typedef long long ll;
struct Edge {
	int next, to; ll c;
} edge[(MAX_N<<1)+5];
int n, m, k, cnt;
int d[MAX_N+5], p[MAX_N+5][25], first[MAX_N+5],;
ll tofa[MAX_N+5][25];
bool vis[MAX_N+5];
void INSERT(int a, int b, ll c) {
	edge[++cnt].next = first[a], edge[cnt].c = c;
	edge[cnt].to = b, first[a] = cnt;
}
void DFS(int u) {
	vis[u] = true;
	for (int i = 1; (1<<i) <= n; i++) {
		if ((1<<i) <= d[u]) {
			p[u][i] = p[p[u][i-1]][i-1];
			tofa[u][i] = tofa[u][i-1]+tofa[p[u][i-1]][i-1];
		}
	}
	for (int i = first[u]; i; i = edge[i].next) {
		int v = edge[i].to;
		if (!vis[v]) {
			d[v] = d[u]+1;
			p[v][0] = u;
			tofa[v][0] = edge[i].c;
			DFS(v);
		}
	}
}
ll LCA(int a, int b) {
	int i, j; ll ret = 0;
	if (d[a] < d[b])	swap(a, b);
	for (i = 0; (1<<i) <= d[a]; i++) {}
	i--;
	for (j = i; j >= 0; j--) {
		if (d[a]-(1<<j) >= d[b]) {
			ret += tofa[a][j];
			a = p[a][j];
		}
	}
	if (a == b) {
		return ret;
	}
	for (j = i; j >= 0; j--) {
		if (p[a][j] != p[b][j]) {
			ret += (tofa[a][j]+tofa[b][j]);
			a = p[a][j];
			b = p[b][j];
		}
	}
	return ret+tofa[a][0]+tofa[b][0];
}
int main() {
	scanf("%d", &n);
	for (int i = 1; i < n; i++) {
		int u, v, c; cin >> u >> v >> c;
		INSERT(u, v, c), INSERT(v, u, c);
	}
	DFS(1);
	scanf("%d%d", &m, &k);
	for (int i = 0; i < m; i++) {
		int x, y; scanf("%d%d", &x, &y);
		printf("%lld\n", LCA(x, k)+LCA(k, y));
	}
	return 0;
}


Compiler output:
a.cc:10:48: error: expected unqualified-id before ';' token
   10 | int d[MAX_N+5], p[MAX_N+5][25], first[MAX_N+5],;
      |                                                ^
Language: C

n, m = map(int, input().split())
print(~-n * ~-m)

Compiler output:
main.c:1:1: warning: data definition has no type or storage class
    1 | n, m = map(int, input().split())
      | ^
main.c:1:1: error: type defaults to 'int' in declaration of 'n' [-Wimplicit-int]
main.c:1:4: error: type defaults to 'int' in declaration of 'm' [-Wimplicit-int]
    1 | n, m = map(int, input().split())
      |    ^
main.c:1:8: error: implicit declaration of function 'map' [-Wimplicit-function-declaration]
    1 | n, m = map(int, input().split())
      |        ^~~
main.c:1:12: error: expected expression before 'int'
    1 | n, m = map(int, input().split())
      |            ^~~
main.c:2:1: error: expected ',' or ';' before 'print'
    2 | print(~-n * ~-m)
      | ^~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;

#define ll long long

signed main()
{
  int n,m; cin >> n >> m;
  int ans = 0;
  //ans = (n+1)*(m+1) -(n+m)*2;
  ans = nm-n-m+1;
  cout << ans << "\n";
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:9: error: 'nm' was not declared in this scope; did you mean 'm'?
   11 |   ans = nm-n-m+1;
      |         ^~
      |         m
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  
  int n, m;
  cin >> n >> m ;
  
  cout << (n-1)(m-1) << endl;

return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:16: error: expression cannot be used as a function
    9 |   cout << (n-1)(m-1) << endl;
      |           ~~~~~^~~~~
Language: C++

#include<iostream>
using namespace std;
int main(){
  int a,b;
  cin>>a>>b;
  cout<<(a-1)*(b-1)
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:20: error: expected ';' before '}' token
    6 |   cout<<(a-1)*(b-1)
      |                    ^
      |                    ;
    7 | }
      | ~
Language: C++

#include <bits/stdc++.h>
using namespace std;
if main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int a, b;
string x;
cin >> a >> b >> x; //scanf(“%d %d”, &a, &b)
cout << a << “ “ << b << “ “ << x << “\n”
//printf(“%d”, (a-1)*(b-1))
}

Compiler output:
a.cc:9:14: error: extended character “ is not valid in an identifier
    9 | cout << a << “ “ << b << “ “ << x << “\n”
      |              ^
a.cc:9:16: error: extended character “ is not valid in an identifier
    9 | cout << a << “ “ << b << “ “ << x << “\n”
      |                ^
a.cc:9:26: error: extended character “ is not valid in an identifier
    9 | cout << a << “ “ << b << “ “ << x << “\n”
      |                          ^
a.cc:9:28: error: extended character “ is not valid in an identifier
    9 | cout << a << “ “ << b << “ “ << x << “\n”
      |                            ^
a.cc:9:38: error: extended character “ is not valid in an identifier
    9 | cout << a << “ “ << b << “ “ << x << “\n”
      |                                      ^
a.cc:9:39: error: stray '\' in program
    9 | cout << a << “ “ << b << “ “ << x << “\n”
      |                                       ^
a.cc:9:40: error: extended character ” is not valid in an identifier
    9 | cout << a << “ “ << b << “ “ << x << “\n”
      |                                        ^
a.cc:3:1: error: expected unqualified-id before 'if'
    3 | if main() {
      | ^~
Language: C

#include<stdio.h>
main() {
  int a, b, c;
  scanf(&d, a);
  scanf(&d, b);

  c = a - 1 * b - 1;
  printf(&d, c);
}


Compiler output:
main.c:2:1: error: return type defaults to 'int' [-Wimplicit-int]
    2 | main() {
      | ^~~~
main.c: In function 'main':
main.c:4:10: error: 'd' undeclared (first use in this function)
    4 |   scanf(&d, a);
      |          ^
main.c:4:10: note: each undeclared identifier is reported only once for each function it appears in
Language: C

include<stdio.h>
int main() {
  int a, b, c;
  scanf(&d, a);
  scanf(&d, b);

  c = a - 1 * b - 1;
  printf(&d, c);
}


Compiler output:
main.c:1:8: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
    1 | include<stdio.h>
      |        ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main(){
  int A,B;
  cin >> A >> B;
  cout << (A -1) * (B - 1)
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:27: error: expected ';' before '}' token
    7 |   cout << (A -1) * (B - 1)
      |                           ^
      |                           ;
    8 | }
      | ~
Language: C

#include<stdio.h>
int main(void){
  int m,n,s;
  scanf("%d%d",&n,&m);
  s=(n-1)*(m-1);
  printf("%d\n"s);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:16: error: expected ')' before 's'
    6 |   printf("%d\n"s);
      |         ~      ^
      |                )
Language: C

#include<stdio.h>
int main(){
  int m,n;
  scanf("%d%d",&m,&n);
  pritnf("%d",(m-1)*(n-1));
}


Compiler output:
main.c: In function 'main':
main.c:5:3: error: implicit declaration of function 'pritnf'; did you mean 'printf'? [-Wimplicit-function-declaration]
    5 |   pritnf("%d",(m-1)*(n-1));
      |   ^~~~~~
      |   printf
Language: C

/*  ex6_1
    kosaq       */

#include <stdio.h>
#include <string.h>
#define SIZE 101//十分な要素数

int main(void){
    char string_s[SIZE];//入力に使う文字列を定義
    int number_total;//全文字数を定義

    scanf("%s", string_s);//文字列を入力

    number_total = strlen(string_s);//全文字数は入力された文字列の長さに等しい

    printf("%c %d %c\n", string_s[0], number_total - 2, string_s[i - 1]);
    //string_s[0]は先頭の文字を出力、number_total - 2は間の文字数を出力、string_s[i - 1]は最後の文字を出力
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:16:66: error: 'i' undeclared (first use in this function)
   16 |     printf("%c %d %c\n", string_s[0], number_total - 2, string_s[i - 1]);
      |                                                                  ^
main.c:16:66: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
int a,b;
cin>>a>>b;
a-=;
b-=;
  cout  <<  a*b  <<  endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:4: error: expected primary-expression before ';' token
    7 | a-=;
      |    ^
a.cc:8:4: error: expected primary-expression before ';' token
    8 | b-=;
      |    ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)

int main(){
  int n,m;
  cin >> n >> m;
  cout < (n-1)*(m-1) << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:22: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
    8 |   cout < (n-1)*(m-1) << endl;
      |          ~~~~~~~~~~~~^~~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int n,m;
  cin>>n>>m;
  cout<<(N-1)*(m-1)<<endl;
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:10: error: 'N' was not declared in this scope
    6 |   cout<<(N-1)*(m-1)<<endl;
      |          ^
Language: C++

#include <bits/std.c++.h>
using namespace std;
int main(void){
    // Your code here!
    int a,b;
    cin>>a>>b;
    
    cout<<(a-1)*(b-1);
}


Compiler output:
a.cc:1:10: fatal error: bits/std.c++.h: No such file or directory
    1 | #include <bits/std.c++.h>
      |          ^~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

    #include<bit/stdc++.h>
    using namespace std;
    int main()
    {
       int N;
      cin>>N;
      
      cout<<"ABC"<<N;
    }

Compiler output:
a.cc:1:13: fatal error: bit/stdc++.h: No such file or directory
    1 |     #include<bit/stdc++.h>
      |             ^~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include<iostream>
using namespace std;

int main() {
  cin >> a >> b;
  --a; --b;
  cout << a * b << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:10: error: 'a' was not declared in this scope
    5 |   cin >> a >> b;
      |          ^
a.cc:5:15: error: 'b' was not declared in this scope
    5 |   cin >> a >> b;
      |               ^
Language: C++

#include <iostream>
#include <algorithm>
#include <complex>
#include <utility>
#include <vector>
#include <string>
#include <queue>
#include <tuple>
#include <cmath>
#include <bitset>
#include <cctype>
#include <set>
#include <map>
#include <numeric>
#include <functional>
#define _overload3(_1,_2,_3,name,...) name
#define _rep(i,n) repi(i,0,n)
#define repi(i,a,b) for(ll i=ll(a);i<ll(b);++i)
#define rep(...) _overload3(__VA_ARGS__,repi,_rep,)(__VA_ARGS__)
#define all(x) (x).begin(),(x).end()
#define PRINT(V) cout << V << "\n"
#define SORT(V) sort((V).begin(),(V).end())
#define RSORT(V) sort((V).rbegin(), (V).rend())
using namespace std;
using ll = long long;
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }
inline void Yes(bool condition){ if(condition) PRINT("Yes"); else PRINT("No"); }
template<class itr> void cins(itr first,itr last){
    for (auto i = first;i != last;i++){
        cin >> (*i);
    }
}
template<class itr> void array_output(itr start,itr goal){
    string ans = "",k = " ";
    for (auto i = start;i != goal;i++) ans += to_string(*i)+k;
    if (!ans.empty()) ans.pop_back();
    PRINT(ans);
}
ll gcd(ll a, ll b) {
    return a ? gcd(b%a,a) : b;
}
const ll INF = 1e15;
const ll MOD = 1000000007;
typedef pair<ll,ll> P;
const ll MAX = 400010;
constexpr ll nx[8] = {1,0,-1,0,-1,-1,1,1};
constexpr ll ny[8] = {0,1,0,-1,-1,1,-1,1};
int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);
    ll n = 100000;
    int n,m;
    cin >> n >> m;
    PRINT((n-1)*(m-1));
}


Compiler output:
a.cc: In function 'int main()':
a.cc:53:9: error: conflicting declaration 'int n'
   53 |     int n,m;
      |         ^
a.cc:52:8: note: previous declaration as 'll n'
   52 |     ll n = 100000;
      |        ^
Language: C++

#include<bits/stdc++.h>
int n,m;
int main()
{
	
	cin>>n>>m;
	if(m==1||n==1)
	cout<<0<<endl;
	cout<<(n-1)*(m-1)<<endl;
	return 0;
} 

Compiler output:
a.cc: In function 'int main()':
a.cc:6:9: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    6 |         cin>>n>>m;
      |         ^~~
      |         std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146,
                 from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:8:9: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    8 |         cout<<0<<endl;
      |         ^~~~
      |         std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:8:18: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    8 |         cout<<0<<endl;
      |                  ^~~~
      |                  std::endl
In file included from /usr/include/c++/14/istream:41,
                 from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
a.cc:9:9: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    9 |         cout<<(n-1)*(m-1)<<endl;
      |         ^~~~
      |         std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:9:28: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    9 |         cout<<(n-1)*(m-1)<<endl;
      |                            ^~~~
      |                            std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int n.m;
  cin>>n>>m;
  cout<<(n-1)*(m-1)<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:8: error: expected initializer before '.' token
    4 |   int n.m;
      |        ^
a.cc:5:8: error: 'n' was not declared in this scope; did you mean 'yn'?
    5 |   cin>>n>>m;
      |        ^
      |        yn
a.cc:5:11: error: 'm' was not declared in this scope; did you mean 'tm'?
    5 |   cin>>n>>m;
      |           ^
      |           tm
Language: C++

#include <iostream>
using namespace std;

int main()
{
	int n, m;
	cin >> n >> m;
	cout << (n-1)*(m-1)
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:28: error: expected ';' before '}' token
    8 |         cout << (n-1)*(m-1)
      |                            ^
      |                            ;
    9 | }
      | ~
Language: Java

import java.util.*;

public class Main{
  public static void main(Stinrg[] args){
    Scanner sc = new Scanner(System.in);
    String S = sc.next();
    int len = S.lenght()-2;
    char s1 = S.charAt(0);
    char s2 = S.charAt(S.length()-1);
    System.out.println(s1+len+s2);
  }
}
    
    


Compiler output:
Main.java:4: error: cannot find symbol
  public static void main(Stinrg[] args){
                          ^
  symbol:   class Stinrg
  location: class Main
Main.java:7: error: cannot find symbol
    int len = S.lenght()-2;
               ^
  symbol:   method lenght()
  location: variable S of type String
2 errors
Language: C++

import sys
import heapq, math
from itertools import zip_longest, permutations, combinations, combinations_with_replacement
from itertools import accumulate, dropwhile, takewhile, groupby
from functools import lru_cache
from copy import deepcopy
N, M = map(int, input().split())
print((N - 1) * (M - 1))

Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import sys
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
Language: C++

#include<bits/stdc++.h>
using namespace std;
int h,m,ans;
int main(){
	cin>>h>>m;
	ans=(a-1)*(b-1);
	cout<<ans<<endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:14: error: 'a' was not declared in this scope
    6 |         ans=(a-1)*(b-1);
      |              ^
a.cc:6:20: error: 'b' was not declared in this scope
    6 |         ans=(a-1)*(b-1);
      |                    ^
Language: C++

#include<istream>
using namespace std;
int main(){
  int a,b;
  cin>>a>>b;
  cout<<(a-1)*(b-1)<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'cin' was not declared in this scope
    5 |   cin>>a>>b;
      |   ^~~
a.cc:2:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    1 | #include<istream>
  +++ |+#include <iostream>
    2 | using namespace std;
a.cc:6:3: error: 'cout' was not declared in this scope
    6 |   cout<<(a-1)*(b-1)<<endl;
      |   ^~~~
a.cc:6:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
 
  string S,s ;
  int C;
  
  cin>>S;
  C= S.size();
  
  s=S[0]&c-2&S[C];
  
 cout<<s<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:10: error: 'c' was not declared in this scope
   12 |   s=S[0]&c-2&S[C];
      |          ^
Language: C++

#include<bits/stdc++.h>
using namespace std;

int main() {
    string s;
    cin >> s;
    int length = s.length;
    cout << s[0] +  to_string(length - 2)  + s[length-1] << endl;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:20: error: cannot convert 'std::__cxx11::basic_string<char>::length' from type 'std::__cxx11::basic_string<char>::size_type (std::__cxx11::basic_string<char>::)() const noexcept' {aka 'long unsigned int (std::__cxx11::basic_string<char>::)() const noexcept'} to type 'int'
    7 |     int length = s.length;
      |                    ^~~~~~
Language: C++

#include bits/stdc++.h>
using namespace std;
int main()
{
    int n,m;
    cin>>n>>m;
    if (n==0&&m==0) cout<<0<<endl;
    else cout<<(n-1)*(m-1)<<endl;
    return 0;
}

Compiler output:
a.cc:1:10: error: #include expects "FILENAME" or <FILENAME>
    1 | #include bits/stdc++.h>
      |          ^~~~
a.cc: In function 'int main()':
a.cc:6:5: error: 'cin' was not declared in this scope
    6 |     cin>>n>>m;
      |     ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | #include bits/stdc++.h>
a.cc:7:21: error: 'cout' was not declared in this scope
    7 |     if (n==0&&m==0) cout<<0<<endl;
      |                     ^~~~
a.cc:7:21: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:7:30: error: 'endl' was not declared in this scope
    7 |     if (n==0&&m==0) cout<<0<<endl;
      |                              ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | #include bits/stdc++.h>
a.cc:8:10: error: 'cout' was not declared in this scope
    8 |     else cout<<(n-1)*(m-1)<<endl;
      |          ^~~~
a.cc:8:10: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:8:29: error: 'endl' was not declared in this scope
    8 |     else cout<<(n-1)*(m-1)<<endl;
      |                             ^~~~
a.cc:8:29: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
Language: C++

int main() {

    cout << "ce" << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:5: error: 'cout' was not declared in this scope
    3 |     cout << "ce" << endl;
      |     ^~~~
a.cc:3:21: error: 'endl' was not declared in this scope
    3 |     cout << "ce" << endl;
      |                     ^~~~
Language: Java

import java.util.*;
public class Main {
	public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
    	String a = sc.next().split("");
	    System.out.println(a[0]+(a.length()-2)+a[a.length()-1]);
    }
}

Compiler output:
Main.java:5: error: incompatible types: String[] cannot be converted to String
    	String a = sc.next().split("");
    	                          ^
Main.java:6: error: array required, but String found
	    System.out.println(a[0]+(a.length()-2)+a[a.length()-1]);
	                        ^
Main.java:6: error: array required, but String found
	    System.out.println(a[0]+(a.length()-2)+a[a.length()-1]);
	                                            ^
3 errors
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef pair<int,int> P;
typedef long long ll;
typedef long double ld;
const int inf=1e9+7;
const ll longinf=1LL<<60;
#define REP(i,m,n) for(int i=(int)(m) ; i < (int) (n) ; ++i )
#define rep(i,n) REP(i,0,n)
#define F first
#define S second
 
const int mx=200010;
const ll mod=1e9+7;


int main(){  
  int h,w;
  cin >> h >> w; h--; w--;
  cout　<< h*w<< endl;
  return 0;
}

Compiler output:
a.cc:20:3: error: extended character 　 is not valid in an identifier
   20 |   cout　<< h*w<< endl;
      |   ^
a.cc: In function 'int main()':
a.cc:20:3: error: 'cout\U00003000' was not declared in this scope
   20 |   cout　<< h*w<< endl;
      |   ^~~~~~
Language: C++

#include <iostream>
#include <bits/stdc++.h>

int main()
{
  int m,n;
  cin>>m>>n;
  int sq;
  sq=(m-1)*(n-1);
  cout<<sq;
  
  
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    7 |   cin>>m>>n;
      |   ^~~
      |   std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:10:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   10 |   cout<<sq;
      |   ^~~~
      |   std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)

int main()
{
  int n, m;
  cin >> n >> m;
  cout << (n - 1)(m - 1) << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:18: error: expression cannot be used as a function
    9 |   cout << (n - 1)(m - 1) << endl;
      |           ~~~~~~~^~~~~~~
Language: C++

#include<bits/stdc++.h>
usinf namespace std;
int main()
{
	long a,b;
	 cin>>a>>b;
	 cout<<(a-1)*(b-1)<<endl;
	  return 0;
}

Compiler output:
a.cc:2:1: error: 'usinf' does not name a type
    2 | usinf namespace std;
      | ^~~~~
a.cc: In function 'int main()':
a.cc:6:10: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    6 |          cin>>a>>b;
      |          ^~~
      |          std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146,
                 from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:7:10: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    7 |          cout<<(a-1)*(b-1)<<endl;
      |          ^~~~
      |          std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:7:29: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    7 |          cout<<(a-1)*(b-1)<<endl;
      |                             ^~~~
      |                             std::endl
In file included from /usr/include/c++/14/istream:41,
                 from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: Java

import java.util.Scanner;


public class Adjacent {
  public static void main(String[] args) {
    Scanner scan = new Scanner(System.in);
    int n = scan.nextInt();
    if (2 <= n && n <= 1.0e5) {
      int[] sunukenoaho = new int[n];
      for (int i = 0; i < n ; i++) {
        sunukenoaho[i] = scan.nextInt();
        sunukenoaho[i] = sunukenoaho[i] % 4;
      }
      int sum = 0;
      for (int i = 1; i < n; i++) {
        if (sunukenoaho[i] * sunukenoaho[i - 1] % 4 == 0) {
          sum++;
        }
      }

      if (sum == n - 1) {
        System.out.println("Yes");
      } else {
        System.out.println("No");
      }
    }


  }
}


Compiler output:
Main.java:4: error: class Adjacent is public, should be declared in a file named Adjacent.java
public class Adjacent {
       ^
1 error
Language: Java

import java.util.Scanner;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Kcity {
  public static void main(String[] args) {
    int n, m;
    Scanner scan = new Scanner(System.in);
    BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

    while (true) {
      try {
        System.out.print("n = ?:");
        n = scan.nextInt();
        System.out.print("m = ?:");
        m = scan.nextInt();
        System.out.println(nBlocks(n, m));

      } catch (java.util.InputMismatchException e) {
        e.printStackTrace();
      }

      try {
        System.out.print("Wanna quit? (y / n)");
        String str = reader.readLine();
        if (str.equals("y")) {
          break;
        }
      } catch (IOException e) {
        e.printStackTrace();
      }
    }

  }

  public static int nBlocks(int n, int m) {
    if (n >= 2 && m <= 100 && m > 0) {
      if (m == 1) {
        return 0;
      }

      return (n - 1) * (m - 1);
    }
    return -1;
  }
}


Compiler output:
Main.java:6: error: class Kcity is public, should be declared in a file named Kcity.java
public class Kcity {
       ^
1 error
Language: Java

import java.util.*;

class Main{
	public static void main(String[] args){
    	Scanner sc = new Scanenr(System.in);
      	int n = sc.nextInt()-1;
      	int m = sc.nextInt()-1;
      	System.out.println(n*m);
    }
}



Compiler output:
Main.java:5: error: cannot find symbol
    	Scanner sc = new Scanenr(System.in);
    	                 ^
  symbol:   class Scanenr
  location: class Main
1 error
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define ll long long                                    // long long省略
#define pb push_back                                    // push_back省略
#define mp make_pair                                    // make_pair省略
#define fi first                                        // first省略
#define se second                                       // second省略
#define itn int                                         // int誤字保険
#define count cout                                      // cout誤字保険
#define vecotr vector                                   // vector誤字保険
#define ednl endl                                       // endl誤字保険
#define opt() cin.tie(0); ios::sync_with_stdio(false)   // 入出力速度改善

#define rep(i,l,r) for(ll i=(l);i<(r);i++)               // 範囲[l, r)で刻み1のfor文(順方向)
#define repp(i,l,r,k) for(ll i=(l);i<(r);i+=(k))         // 範囲[l, r)で刻みkのfor文(順方向)
#define rrep(i,l,r) for(ll i=(r-1);i>=(l);i--)           // 範囲[l, r)で刻み1のfor文(逆方向)
#define rrepp(i,l,r,k) for(ll i=(r-1);i>=(l);i-=(k))     // 範囲[l, r)で刻みkのfor文(逆方向)
#define all(x) (x).begin(), (x).end()                   // vectorのポインタ位置指定用
#define max(p,q)((p)>(q)?(p):(q))                       // max拡張
#define min(p,q)((p)<(q)?(p):(q))                       // min拡張
#define bit(n,m)(((n)>>(m))&1)                          // 変数nのm番目のbitを取り出す

template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }

int dy[]={0, 1, 0, -1};                                 // 4方向近傍
int dx[]={1, 0, -1, 0};                                 // 4方向近傍

//union-find
const int N_MAX = 10e9;
ll par[N_MAX];
ll rnk[N_MAX];
void init(ll n){ rep(i,0,n){ par[i] = i; rnk[i] = 1;} }
ll find(ll x){ if(x == par[x]) return x; return par[x] = find(par[x]); }
void unite(ll x, ll y){
    x = find(x); y = find(y);
    if(rnk[x] < rnk[y]){
        par[x] = y;
    }else{
        par[y] = x;
        if(rnk[x] == rnk[y]) rnk[x]++
    }
}
bool same(ll x, ll y){ return find(x) == find(y); }
int main(){
    ll a,b;cin>>a>>b;
    a--;b--;
    cout<<a*b<<endl;
}



Compiler output:
a.cc:30:19: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+10' to '2147483647' [-Woverflow]
   30 | const int N_MAX = 10e9;
      |                   ^~~~
a.cc:31:8: error: size of array 'par' exceeds maximum object size '9223372036854775807'
   31 | ll par[N_MAX];
      |        ^~~~~
a.cc:32:8: error: size of array 'rnk' exceeds maximum object size '9223372036854775807'
   32 | ll rnk[N_MAX];
      |        ^~~~~
a.cc: In function 'void unite(long long int, long long int)':
a.cc:41:38: error: expected ';' before '}' token
   41 |         if(rnk[x] == rnk[y]) rnk[x]++
      |                                      ^
      |                                      ;
   42 |     }
      |     ~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
    string ss;
    cin>>ss;
    int l=s.size();
    int ll=l-2;
    cout<<ss[0]<<ll<<ss[l-1];
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:11: error: 's' was not declared in this scope
    7 |     int l=s.size();
      |           ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
    string ss;
    cin>>ss;
    int l=ss.size();
    int ll=l-2;
    cout<<s[0]<<ll<<s[l-1];
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:11: error: 's' was not declared in this scope
    9 |     cout<<s[0]<<ll<<s[l-1];
      |           ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
    string ss;
    cin>>ss;
    int l=s.size();
    int ll=l-2;
    cout<<s[0]<<ll<<s[l-1];
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:11: error: 's' was not declared in this scope
    7 |     int l=s.size();
      |           ^
Language: C++

#include <iostream>
using namespace std;
int a, b;
int main () {
    cin >> a >> b;
    cout << (a-1)*(B-1) << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:20: error: 'B' was not declared in this scope
    6 |     cout << (a-1)*(B-1) << endl;
      |                    ^
Language: C++

#include <bits/stdc++.h>
 using namespace std;
 typedef long long ll;
 inline int read()
 {
     ,f=;
     char ch=getchar();
     ')
     {
         if(ch=='-')
             f=-;
         ch=getchar();
     }
     ')
     {
         x=x*+ch-';
         ch=getchar();
     }
     return x*f;
 }
 inline void write(int x)
 {
     )
     {
         putchar('-');
         x=-x;
     }
     )
     {
         write(x/);
     }
     putchar(x%+');
 }
 int main()
 {
     int a,b;
     cin>>a>>b;
     cout<<(a-)*(b-)<<endl;
     ;
 }

Compiler output:
a.cc:8:6: warning: missing terminating ' character
    8 |      ')
      |      ^
a.cc:8:6: error: missing terminating ' character
    8 |      ')
      |      ^~
a.cc:14:6: warning: missing terminating ' character
   14 |      ')
      |      ^
a.cc:14:6: error: missing terminating ' character
   14 |      ')
      |      ^~
a.cc:16:18: warning: missing terminating ' character
   16 |          x=x*+ch-';
      |                  ^
a.cc:16:18: error: missing terminating ' character
   16 |          x=x*+ch-';
      |                  ^~
a.cc:32:17: warning: missing terminating ' character
   32 |      putchar(x%+');
      |                 ^
a.cc:32:17: error: missing terminating ' character
   32 |      putchar(x%+');
      |                 ^~~
a.cc: In function 'int read()':
a.cc:6:6: error: expected primary-expression before ',' token
    6 |      ,f=;
      |      ^
a.cc:6:7: error: 'f' was not declared in this scope
    6 |      ,f=;
      |       ^
a.cc:6:9: error: expected primary-expression before ';' token
    6 |      ,f=;
      |         ^
a.cc:11:17: error: expected primary-expression before ';' token
   11 |              f=-;
      |                 ^
a.cc:16:10: error: 'x' was not declared in this scope
   16 |          x=x*+ch-';
      |          ^
a.cc:19:13: error: 'x' was not declared in this scope
   19 |      return x*f;
      |             ^
a.cc: In function 'void write(int)':
a.cc:23:6: error: expected primary-expression before ')' token
   23 |      )
      |      ^
a.cc:28:6: error: expected primary-expression before ')' token
   28 |      )
      |      ^
a.cc:33:2: error: expected primary-expression before '}' token
   33 |  }
      |  ^
a.cc: In function 'int main()':
a.cc:38:15: error: expected primary-expression before ')' token
   38 |      cout<<(a-)*(b-)<<endl;
      |               ^
a.cc:38:20: error: expected primary-expression before ')' token
   38 |      cout<<(a-)*(b-)<<endl;
      |                    ^
Language: C++

#include <bit/stdc++.h>
using namespace std;
typedef long long int ll;
int main()
{
  ll n, m;
  cin >> n >> m;
  cout << (n - 1) * (m - 1);
  return 0;
}

Compiler output:
a.cc:1:10: fatal error: bit/stdc++.h: No such file or directory
    1 | #include <bit/stdc++.h>
      |          ^~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
    int a,b;
  cin >> a >> b;
  cout<<(a-1)*(b-1<<endl;
               return 0;
    
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:19: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
    6 |   cout<<(a-1)*(b-1<<endl;
      |                ~~~^~~~~~
a.cc:6:25: error: expected ')' before ';' token
    6 |   cout<<(a-1)*(b-1<<endl;
      |               ~         ^
      |                         )
Language: Java

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        String s = sc.next();
        int n = s.length();

        System.out.print(s.charAt(0);
        System.out.print(n-2);
        System.out.println(s.charAt(k-1));
    }
}



Compiler output:
Main.java:10: error: ')' or ',' expected
        System.out.print(s.charAt(0);
                                    ^
1 error
Language: Java

import java.util.Scanner;

public class Maim{
    public static void main(String args[]){
        Scanner scan = new Scanner(System.in);
        int n = scan.nextInt();
        int m = scan.nextInt();
        System.out.println((n-1)*(m-1));
    }

}

Compiler output:
Main.java:3: error: class Maim is public, should be declared in a file named Maim.java
public class Maim{
       ^
1 error
Language: C++

#include <iostream>
#include <vector>
#include <cmath>
#include <algorithm>
#include <iomanip>
#include <cstring>
#define rep(i, N) for (int i = 0; i < (int)N; i++)
using namespace std;
typedef long long ll;
const ll LLINF = 9223372036854775807;
const int MOD = 1000000007;

int main() {
  int n, m; cin >> n >> m;
  result = (n-1) * (m-1);
  cout << result << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:3: error: 'result' was not declared in this scope
   15 |   result = (n-1) * (m-1);
      |   ^~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  int n;,m
  cin>>n>>m;
  cout<<(n-1)*(m-1)<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:4:9: error: expected primary-expression before ',' token
    4 |   int n;,m
      |         ^
a.cc:4:10: error: 'm' was not declared in this scope
    4 |   int n;,m
      |          ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {

  int n, m; cin >> n >> m;
  cout << N / (n - 1) * (m - 1) << endl;
    
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:11: error: 'N' was not declared in this scope
    7 |   cout << N / (n - 1) * (m - 1) << endl;
      |           ^
Language: C++

// luogu-judger-enable-o2
#include<bits/stdc++.h>
using namespace std;

int main()
{
int n,m;
cin>>n>>m;
if(n==0&&m==0)cout<<"0<<endl;
else cout<<(n-1)*(m-1)<<endl;
return 0;
}

Compiler output:
a.cc:9:21: warning: missing terminating " character
    9 | if(n==0&&m==0)cout<<"0<<endl;
      |                     ^
a.cc:9:21: error: missing terminating " character
    9 | if(n==0&&m==0)cout<<"0<<endl;
      |                     ^~~~~~~~~
a.cc: In function 'int main()':
a.cc:10:1: error: expected primary-expression before 'else'
   10 | else cout<<(n-1)*(m-1)<<endl;
      | ^~~~
Language: C++

#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")

#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>
#include <iomanip>


using namespace std;
using namespace __gnu_pbds;

typedef long long ll;
typedef long double ld;

typedef pair<int, int> pi;
typedef pair<ll,ll> pl;
typedef pair<ld,ld> pd;

typedef vector<int> vi;
typedef vector<ld> vd;
typedef vector<ll> vl;
typedef vector<pi> vpi;
typedef vector<pl> vpl;

#define rep(i, a, b) for (int i=a; i<(b); i++)
#define rp(i, a) for (int i=0; i<(a); i++)
#define repd(i,a,b) for (int i = (b)-1; i >= a; i--)
#define rpd(i,a) for (int i = (a)-1; i >= 0; i--)

#define sz(x) (int)(x).size()
#define mp make_pair
#define pb push_back
#define f first
#define s second
#define lb lower_bound
#define ub upper_bound
#define all(x) x.begin(), x.end()
#define shandom_ruffle random_shuffle

const int MOD = 1000000007;
const ll INF = 1e18;
const int MX = 100001; //check the limits, dummy


int main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    cout << std::setprecision(9);
    cout << std::fixed;

    ll n,m;
    cin >> n >> k;
    cout << (n-1)*(k-1)<<endl;

    return 0;
}

// read the question correctly (ll vs int)
// template by super1 derived from bqi343


Compiler output:
a.cc: In function 'int main()':
a.cc:52:17: error: 'k' was not declared in this scope
   52 |     cin >> n >> k;
      |                 ^
Language: C++

#include<stdio.h>
int main(void)
{
	int n,m;
	scanf("%d%d",&n,&m);
	prnitf("%d",(n-1)*(m-1));
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:9: error: 'prnitf' was not declared in this scope; did you mean 'printf'?
    6 |         prnitf("%d",(n-1)*(m-1));
      |         ^~~~~~
      |         printf
Language: C++

#include <bits/stdc++.h>
#define int long long
using namespace std;
signed main(){
int a,b;
cin>>a>>b;
cout<<(a-1)*(b-1);a
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:20: error: expected ';' before '}' token
    7 | cout<<(a-1)*(b-1);a
      |                    ^
      |                    ;
    8 | }
      | ~
Language: C++

#include<stdio.h>
int main(void)
{
	int a,b,c;
	scanf("%d",&n);
	scanf("%d",&m);
	s=(n-1)*(m-1);
	printf("%d\n",s);
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:21: error: 'n' was not declared in this scope
    5 |         scanf("%d",&n);
      |                     ^
a.cc:6:21: error: 'm' was not declared in this scope
    6 |         scanf("%d",&m);
      |                     ^
a.cc:7:9: error: 's' was not declared in this scope
    7 |         s=(n-1)*(m-1);
      |         ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int a,b,;
	cin>>a>>b;
	cout<<(a-1)*(b-1)<<endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:17: error: expected unqualified-id before ';' token
    5 |         int a,b,;
      |                 ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int N, M

int main() {
    cin >> N >> M;

    cout << (N-1) * (M-1) << endl;

    return 0;
}


Compiler output:
a.cc:7:1: error: expected initializer before 'int'
    7 | int main() {
      | ^~~
Language: C++

#include <algorithm>
#include <iostream> //入出力
#include <stdio.h>
#include <map>
#include <set>
#include <string>
#include <math.h> //算術演算子
#include <vector>
#include <cstdlib>
#include <queue>
#include <stack>
#include <list>
#include <iomanip> //小数点以下を表示させる(setprecision())
//#include <bits/stdc++.h>
using namespace std;
typedef long long ll; //64bit型

#define debug(x) cerr << x << " " \
                      << "(L:" << __LINE__ << ")" << '\n'
#define PRINT(V)                                   \
        {                                          \
                for (int i = 0; i < V.size(); i++) \
                {                                  \
                        cout << V[i] << " ";       \
                }                                  \
                cout << endl;                      \
        }

int gcd(int a, int b)
{
        return b ? gcd(b, a % b) : a;
}

int main()
{
        //input->compute->output//

        int n, m;
        cin >> n>>M;
        
                cout << (n-1)*(m-1) << endl;
        

        return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:39:19: error: 'M' was not declared in this scope
   39 |         cin >> n>>M;
      |                   ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  int n,n;
  cin >> n>>m;
  cout << (n-1)*(m-1) << endl;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:9: error: redeclaration of 'int n'
    5 |   int n,n;
      |         ^
a.cc:5:7: note: 'int n' previously declared here
    5 |   int n,n;
      |       ^
a.cc:6:13: error: 'm' was not declared in this scope
    6 |   cin >> n>>m;
      |             ^