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

#include <bits/stdc++.h>

using namespace std;

#define INF 1001000100010001000
#define MOD 1000000007
#define EPS 1e-10
#define int long long
#define rep(i, N) for (int i = 0; i < N; i++)
#define Rep(i, N) for (int i = 1; i < N; i++)
#define For(i, a, b) for (int i = (a); i < (b); i++)
#define pb push_back
#define eb emplace_back
#define mp make_pair
#define pii pair<int, int>
#define vi vector<int>
#define vvi vector<vi >
#define vb vector<bool>
#define vvb vector<vb >
#define vp vector< pii >
#define all(a) (a).begin(), (a).end()
#define Int(x) int x; cin >> x;
#define int2(x, y) Int(x); Int(y);
#define int3(x, y, z) Int(x); int2(y, z);
#define in(x, a, b) ((a) <= (x) && (x) < (b))
#define fir first
#define sec second
#define ffir first.first
#define fsec first.second
#define sfir second.first
#define ssec second.second
#define Decimal fixed << setprecision(10)

//int dxy[5] = {0, 1, 0, -1, 0};
// cmd

signed main()
{
    std::ios::sync_with_stdio(false);
    std::cin.tie(0);

    Int(n);
    vector<int> a(n);
    for (int i = 0; i < n; i++) {
        cin >> a[i];
    }
    vector<int> b(n);
    for (int i = 0; i < n; i++) {
        cin >> b[i];
    }
    
    int ans = 0;
    rep(i, 28) {
        vi aa(n), bb(n);
        int keta = 1 << (i+1), x = pow(2, i);
        rep(j, n) {
            aa[j] = a[j] % keta;
            bb[j] = b[j] % keta;
        }
        sort(all(bb));
        //std::cout << "keta : " << keta << std::endl;
        //rep(j, n) cout << aa[j] << " "; cout << endl;
        //rep(j, n) cout << bb[j] << " "; cout << endl;
        int s = 0;
        rep(j, n) {
            std::cout << "a:" << aa[j] << std::endl;
            if (aa[j] < pow(2, i)) {
                int le = lower_bound(all(bb), x-aa[j]) - bb.begin();
                int ri = upper_bound(all(bb), x*2-aa[j]) - bb.begin();
                //std::cout << ri - le << std::endl;
                s += (ri - le);
            } else {
                auto ri = upper_bound(all(bb), x*2-aa[j]) - bb.begin()-1;
                s += ri;
                auto le = bb.end() - lower_bound(all(bb), x*3-aa[j]);
                s += le;
                //std::cout << ri << " " << le << std::endl;
            }
        }
        ans += (1 << i) * (s % 2);
    }

    std::cout << ans << std::endl;

    return 0;
}







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

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
int main(){
  ll n;cin>>n;
  ll a[n],b[n];
  for(ll i=0;i<n;i++)cin>>a[i];
  for(ll i=0;i<n;i++)cin>>b[i];
  ll ans[30];
  for(ll i=0;i<=29;i++){
    ll now=pow(2,i+1);
    vector<ll> va(n),vb(n);
    for(ll j=0;j<n;j++){
      va[j]=a[j]%now;
      vb[j]=b[j]%now;
    }
    sort(va.begin(),va.end());
    sort(vb.begin(),vb.end());
    ll cnt=0;
    for(ll j=0;j<n;j++){
      ll g=va[j];
      if(g<=now/2){
        ll s=lower_bound(vb.begin(),vb.end(),now/2-g)-vb.begin();
        ll t=lower_bound(vb.begin(),vb.end(),now-g)-vb.begin();
        cnt+=t-s;
      }
      else{
        ll s=lower_bound(vb.begin(),vb.end(),now-g)-vb.begin();
        ll t=lower_bound(vb.begin(),vb.end(),now-(g-now/2))-vb.begin();
        cnt+=s+vb.size()-t;
      }
    }
    ans[i]=cnt%2;
  }
  ll sum=0;
  for(ll i=0;i<30;i++)sum+=pow(2,i)*ans[i];
  cout<<sym<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:37:9: error: 'sym' was not declared in this scope; did you mean 'sum'?
   37 |   cout<<sym<<endl;
      |         ^~~
      |         sum
Language: C++


//include
//------------------------------------------
#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <queue>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <fstream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <string>
#include <cstring>
#include <ctime>
#include <climits>
#include <limits>

using namespace std;

//conversion
//------------------------------------------
inline int toInt(string s) { int v; istringstream sin(s); sin >> v; return v; }
template<class T> inline string toString(T x) { ostringstream sout; sout << x; return sout.str(); }

//math
//-------------------------------------------
template<class T> inline T sqr(T x) { return x * x; }

//typedef
//------------------------------------------
typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<string> VS;
typedef pair<int, int> PII;
typedef long long LL;

//container util
//------------------------------------------
#define ALL(a)  (a).begin(),(a).end()
#define RALL(a) (a).rbegin(), (a).rend()
#define PB push_back
#define MP make_pair
#define SZ(a) int((a).size())
#define EACH(i,c) for(typeof((c).begin()) i=(c).begin(); i!=(c).end(); ++i)
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define EXISTch(s,c) ((((s).find_first_of(c)) != std::string::npos)? 1 : 0)//cがあれば1 if(1)
#define SORT(c) sort((c).begin(),(c).end())

#define REP(i,n) for(int i=0;i<(int)n;++i)
#define FOR(i,c) for(__typeof((c).begin())i=(c).begin();i!=(c).end();++i)

//constant
//--------------------------------------------
const double EPS = 1e-10;
const double PI = acos(-1.0);
const int INF = (int)1000000007;
const LL MOD = (LL)1000000007;//10^9+7
const LL INF2 = (LL)100000000000000000;//10^18

int main() {

	int n; cin >> n;
	vector<int> a(n);

	for (int i = 0; i < n; i++) {
		cin >> a[i];
	}

	vector<int> b(n);

	for (int i = 0; i < n; i++) {
		cin >> b[i];
	}

	int ans = 0;

	for (int bit = 0; bit <= 29; bit++) {

		vector<int> c(n);
		vector<int> d(n);

		for (int i = 0; i < n; i++) {
			c[i] = a[i] % (1 << (bit + 1));
			d[i] = b[i] % (1 << (bit + 1));
		}

		sort(d.begin(), d.end());

		int T = (1 << bit);

		int sum = 0;

		for (int i = 0; i < n; i++) {

			int l1 = lower_bound(d.begin(), d.end(), T - c[i]) - d.begin();
			int r1 = lower_bound(d.begin(), d.end(), 2 * T - c[i]) - d.begin();

			sum += (r1 - l1);
			
			if (T - c[i] <= 0) {
				int l2 = lower_bound(d.begin(), d.end(), 3 * T - c[i]) - d.begin();
				int r2 = lower_bound(d.begin(), d.end(), 4 * T - c[i]) - d.begin();

				sum += (r2 - l2);

			}
			

		if (sum % 2 == 1) {
			ans += (1 << bit);
		}
	}

	cout << ans << endl;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:128:2: error: expected '}' at end of input
  128 | }
      |  ^
a.cc:71:12: note: to match this '{'
   71 | int main() {
      |            ^
Language: C++

#include<bits/stdc++.h>
#define INF 1e9
#define llINF 1e18
#define MOD 1000000007
#define pb push_back
#define mp make_pair 
#define F first
#define S second
#define ll long long
#define vi vector<ll>
#define vvi vector<vi>
#define substr(s,f,t) (s.substr(f-1,t-f+1))
#define ALL(a) (a).begin(),(a).end()
#define Yes(hoge) cout<<((hoge)?"Yes":"No")<<endl;
#define YES(hoge) cout<<((hoge)?"YES":"NO")<<endl;
using namespace std;
struct Grid{ll x,y,t;};
struct Edge{ll to,cost;};
struct Graph{vector<vector<Edge>>E;int V;
  const ll Inf = llINF;const int MAX_V=201010;vector<ll>d;
  Graph(int n):E(n){d.resize(MAX_V);E.resize(n);V=n;}
  void init(){for(int i=0;i<MAX_V;i++)d[i]=Inf;}
  void add_edge(ll from,ll to,ll cost){E[from].pb({to,cost});}
};
int main(){
  cin.tie(0);
  ios::sync_with_stdio(false);
  int n;cin>>n;
  vi a(n);
  vi b(n);
  for(int i=0;i<n;i++)cin>>a[i];
  for(int i=0;i<n;i++)cin>>b[i];

  b[i].pb(llINF);
  ll ans=0;
  vi sum(100);
  for(int j=0;j<=28;j++){
    for(int i=0;i<n;i++)b[i]%=(1<<(j+1));
    sort(ALL(b));
    for(int i=0;i<n;i++){
      ll aa=(a[i]%(1<<(j+1)));
      ll cnt=0;
      auto lb=lower_bound(ALL(b),(1<<j)-aa);
      auto lb2=lower_bound(ALL(b),(1<<(j+1))-aa);
      cnt+=(lb2-lb);
      auto lb3=lower_bound(ALL(b),(1<<(j+1))+(1<<j)-aa);
      auto lb4=lower_bound(ALL(b),(1<<(j+1))+(1<<(j+1))-aa);
      cnt+=(lb4-lb3);
      sum[j]+=cnt;
    }
  }
  for(int i=0;i<=28;i++){
    ans+=(1<<i)*(sum[i]%2);
  }

  cout<<ans<<endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:34:5: error: 'i' was not declared in this scope
   34 |   b[i].pb(llINF);
      |     ^
Language: C++

#include<bits/stdc++.h>
#define INF 1e9
#define llINF 1e18
#define MOD 1000000007
#define pb push_back
#define mp make_pair 
#define F first
#define S second
#define ll long long
#define vi vector<ll>
#define vvi vector<vi>
#define substr(s,f,t) (s.substr(f-1,t-f+1))
#define ALL(a) (a).begin(),(a).end()
#define Yes(hoge) cout<<((hoge)?"Yes":"No")<<endl;
#define YES(hoge) cout<<((hoge)?"YES":"NO")<<endl;
using namespace std;
struct Grid{ll x,y,t;};
struct Edge{ll to,cost;};
struct Graph{vector<vector<Edge>>E;int V;
  const ll Inf = llINF;const int MAX_V=201010;vector<ll>d;
  Graph(int n):E(n){d.resize(MAX_V);E.resize(n);V=n;}
  void init(){for(int i=0;i<MAX_V;i++)d[i]=Inf;}
  void add_edge(ll from,ll to,ll cost){E[from].pb({to,cost});}
};
int main(){
  cin.tie(0);
  ios::sync_with_stdio(false);
  int n;cin>>n;
  vi a(n);
  vi b(n);
  for(int i=0;i<n;i++)cin>>a[i];
  for(int i=0;i<n;i++)cin>>b[i];
  vvi bb(29);
  for(int j=0;j<=28;j++)
    for(int i=0;i<n;i++)
      bb[j].pb(b[i]%(1<<(j+1)));
  for(int i=0;i<=28;i++){
    sort(ALL(bb[i]));bb[i].pb(llINF);
  }
  ll ans=0;
  vi sum(100);
  for(int i=0;i<n;i++){
    for(int j=0;j<=28;j++){
      ll aa=(a[i]%(1<<(j+1)));
      if(bb[j][0]<=(1<<j)-aa&&(1<<(j+1)-aa)<=bb[j][n-1]){
      auto lb=lower_bound(ALL(bb[j]),(1<<j)-aa);
      auto lb2=lower_bound(ALL(bb[j]),(1<<(j+1))-aa);
      ll cnt=0;
      cnt+=(lb2-lb);
      }
      if(bb[j][0]<=(1<<j)+(1<<(j+1))-aa&&(2*(1<<(j+1))-aa)<=bb[j][n-1]){
      auto lb3=lower_bound(ALL(bb[j]),(1<<(j+1))+(1<<j)-aa);
      auto lb4=lower_bound(ALL(bb[j]),(1<<(j+1))+(1<<(j+1))-aa);
      cnt+=(lb4-lb3);
      sum[j]+=cnt;
      }
  
     
    }
  }
  for(int i=0;i<=28;i++){
    ans+=(1<<i)*(sum[i]%2);
  }

  cout<<ans<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:54:7: error: 'cnt' was not declared in this scope; did you mean 'int'?
   54 |       cnt+=(lb4-lb3);
      |       ^~~
      |       int
Language: C++

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

ll a[32][200010];
ll b[32][200010];
ll c[32];
int n;

int f(int k, ll upper, ll lower) {
  ll up = -1;
  for (ll i = 30; i >= 0; i--) {
    if (up + c[i] >= n) continue;
    if (b[k][up+c[i]] < upper) {
      up += c[i];
    }
  }
  up++;
  ll low = -1;
  for (ll i = 30; i >= 0; i--) {
    if (low + c[i] >= n) continue;
    if (b[k][low+c[i]] < lower)
      low += c[i];
  }
  low++;
  return up - low;
}

int main(){
  ios::sync_with_stdio(false);
  cin.tie(0);
  cin >> n;
  for (int i = 0; i <= 31; i++) {
    c[i] = (1LL << i);
  }
  for (int i = 0; i < n; i++) cin >> a[0][i];
  for (int i = 0; i < n; i++) cin >> b[0][i];
  for (int i = 1; i < 31; i++) {
    for (int j = 0; j < n; j++) {
      a[i][j] = a[0][j] % c[i];
      b[i][j] = b[0][j] % c[i];
    }
    sort(b[i],b[i]+n);
  }
  /*
  ll ans = 0;
  for (ll i = 1; i < 31; i++) {
    ll cnt = 0;
    for (int j = 0; j < n; j++) {
      ll aa = f(i, c[i]-a[i][j], c[i-1]-a[i][j]);
      ll bb = f(i, c[i+1]-a[i][j], c[i-1]*3-a[i][j]);
      cnt += aa + bb;
    }
    ans += c[i-1] * (cnt%2);
  }
*/
  cout << ans << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:57:11: error: 'ans' was not declared in this scope; did you mean 'abs'?
   57 |   cout << ans << endl;
      |           ^~~
      |           abs
Language: C++

#include <stdio.h>
#include <algorithm>
#include <iostream>
#include <vector>
#include <assert.h>
#include <map>
#include <set>
#include <unordered_set>
#include <unordered_map>
#include <math.h>
#include <string>
#include <string.h>
#include <queue>
#include <complex>
#include <iomanip>
#include <stack>
using namespace std;
typedef long long int ll;
typedef unsigned long long int ull;
ll mod=1e9+7;
double eps=1e-7;
ll exp(ll x,ll y){if(y<0) return 0; ll ret=1;for(;y;y>>=1,x=(x*x)%mod){if(y&1)ret=(ret*x)%mod;}return ret;}
ull pexp(ull x,ull y){if(y<0) return 0; ull ret=1; for(;y;y>>=1,x=(x*x)){if(y&1)ret=(ret*x);}return ret;}
ll gcd(ll x,ll y){if(!x||!y) return x+y; return x%y==0?y:gcd(y,x%y);}
ll lcm(ll x,ll y){return x*(y/gcd(x,y));}
ll bsum(ll u,ll b){ll ret=0;if(u<b)return u;while(u){ret+=u%b;u/=b;}return ret;}
ll prival(ll u,ll p){ll cn=0;while(u%p==0){cn++;u=u/p;}return cn;}
ll minv(ll a,ll b){return 1<a?b-minv(b%a,a)*b/a:1;}
ll extm(ll a,ll b){ll ret=0;while(a!=0){if(a%2==1){ret+=b;ret%=mod;}a>>=1;b=(2*b)%mod;}return ret;}   
ll eaphi(ll x){ll t=x,ret=x,i;for(i=2;i*i<=x;i++){if(t%i==0){ret-=ret/i;while(t%i==0) t/=i;}}if(t!=1) ret-=ret/t;return ret;}
ll eadivc(ll x){ll ret=0;ll i;for(i=1;i*i<=x;i++){if(x%i==0 && i*i!=x) ret+=2;if(x%i==0 && i*i==x) ret+=1;}return ret;}
ll eadivs(ll x){ll ret=0;ll i;for(i=1;i*i<=x;i++){if(x%i==0 && i*i!=x) ret+=i+x/i;if(x%i==0 && i*i==x) ret+=i;}return ret;}
ll ndig(ll x, ll b){ll ret=0;while(x){x/=b; ret++;}return ret;}
ll rev(ll n, ll b){ll ret=0;while(n){ret=b*ret+n%b; n/=b;}return ret;}
ll sq(ll x){ll t=(ll)sqrt(x); for(ll i=t-2 ; i<=t+2 ; i++) if(i*i==x) return abs(i); return -1;}
ll extexp(ll x,ll y){if(y<0) return 0; ll ret=1;for(;y;y>>=1,x=extm(x,x)){if(y&1)ret=extm(ret,x);}return ret;}
bool isprime(ll x){if(x<=1) return false; for(ll i=2;i*i<=x;i++){if(x%i==0){return false;}}return true;}
ll ans, n, a[222222], b[222222];
ll c[222222], d[222222];

x<=rig - x<=lef-1
bool isok(int x)
{
	ll i, cut=(1LL<<(x+1)), cnt=0, lef, rig;
	for(i=1 ; i<=n ; i++) c[i]=a[i]%cut;
	for(i=1 ; i<=n ; i++) d[i]=b[i]%cut;
	sort(d+1,d+n+1); d[n+1]=1e18;
	for(i=1 ; i<=n ; i++)
	{
		lef=(1LL<<x)-c[i];
		rig=2LL*(1LL<<x)-c[i]-1;
		cnt+=upper_bound(d+1,d+n+2,rig)-d-1;
		cnt-=lower_bound(d+1,d+n+2,lef)-d-1;
		lef=3LL*(1LL<<x)-c[i];
		rig=4LL*(1LL<<x)-c[i]-1;
		cnt+=upper_bound(d+1,d+n+2,rig)-d-1;
		cnt-=lower_bound(d+1,d+n+2,lef)-d-1;
	}
	if(cnt%2==1) return true;
	return false;
}

int main(void)
{
	ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
	cin>>n; int i, j;
	for(i=1 ; i<=n ; i++) cin>>a[i];
	for(i=1 ; i<=n ; i++) cin>>b[i];
	for(i=0 ; i<=27 ; i++) if(isok(i)) ans+=(1LL<<i);
	cout<<ans; return 0;
}

// 제출하기 전에 생각햇나요?
// it may be easier/harder than you think
// ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);

Compiler output:
a.cc:41:1: error: 'x' does not name a type
   41 | x<=rig - x<=lef-1
      | ^
a.cc: In function 'int main()':
a.cc:69:35: error: 'isok' was not declared in this scope
   69 |         for(i=0 ; i<=27 ; i++) if(isok(i)) ans+=(1LL<<i);
      |                                   ^~~~
Language: C++

#pragma GCC target("avx")
#include <bits/stdc++.h>
#include <xmmintrin.h>
#define FOR(i,k,n)  for(int i = (k);i < (n);++i)
#define REP(i,n)    FOR(i,0,n)
#define ALL(x)      begin(x),end(x)
 
using namespace std;
using vecint = vector<int>;
using ll = int64_t;
 
int main()
{
  int n;
  cin>>n;
  int *a = (int*)_mm_malloc(sizeof(int)*(n+15), 16);
  int *b = (int*)_mm_malloc(sizeof(int)*(n+15), 16);
  REP(i,n) cin>>a[i];
  FOR(i,n,n+15) a[i] = 0;
  REP(i,n) cin>>b[i];
  FOR(i,n,n+15) b[i] = 0;
  int block_i = 256;
  int block_j = 24; // hardcoded
  int resall = 0;
  __m128i reg0 = _mm_setzero_si128();
  __m128i reg1 = _mm_setzero_si128();
  __m128i reg2 = _mm_setzero_si128();
  __m128i reg3 = _mm_setzero_si128();
  __m128i reg4 = _mm_setzero_si128();
  __m128i reg5 = _mm_setzero_si128();
  for (int i = 0; i < n; i += block_i) {
    for (int j = 0; j < n; j += block_j) {
      if (n - i >= block_i && n - j >= block_j) {
        __m128i breg0 = _mm_load_si128((__m128i*)(b + j + 0));
        __m128i breg1 = _mm_load_si128((__m128i*)(b + j + 4));
        __m128i breg2 = _mm_load_si128((__m128i*)(b + j + 8));
        __m128i breg3 = _mm_load_si128((__m128i*)(b + j + 12));
        __m128i breg4 = _mm_load_si128((__m128i*)(b + j + 16));
        __m128i breg5 = _mm_load_si128((__m128i*)(b + j + 20));
        for (int i2 = 0; i2 < block_i; ++i2) {
          __m128i areg = _mm_set1_epi32(a[i + i2]);
          reg0 ^= _mm_add_epi32(abc, breg0);
          reg1 ^= _mm_add_epi32(abc, breg1);
          reg2 ^= _mm_add_epi32(abc, breg2);
          reg3 ^= _mm_add_epi32(abc, breg3);
          reg4 ^= _mm_add_epi32(abc, breg4);
          reg5 ^= _mm_add_epi32(abc, breg5);
        }
      } else {
        int ei = min(block_i, n - i);
        int ej = min(block_j, n - j);
        REP(i2,ei)REP(j2,ej) resall ^= a[i+i2] + b[j+j2];
      }
    }
  }
  __m128i resblock = reg0 ^ reg1 ^ reg2 ^ reg3 ^ reg4 ^ reg5;
  alignas(16) int resnonvec[4];
  _mm_store_si128((__m128i*)resnonvec, resblock);
  resall ^= resnonvec[0] ^ resnonvec[1] ^ resnonvec[2] ^ resnonvec[3];
  cout << resall << endl;
  _mm_free(a);
  _mm_free(b);
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:42:33: error: 'abc' was not declared in this scope; did you mean 'abs'?
   42 |           reg0 ^= _mm_add_epi32(abc, breg0);
      |                                 ^~~
      |                                 abs
Language: C++


#include <map>
#include <sstream>
#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <vector>
#include <queue>
#include <iostream>

using namespace std;
#define REP(i, n) for(int i = 0; i < (int)(n); ++i)
typedef long long ll;

int as[200000+10];
int bs[200000+10];

int main(void) {
  int n;
  scanf("%d", &n);
  REP(i, n) {
    scanf("%d", &as[i]);
  }
  REP(i, n) {
    scanf("%d", &bs[i]);
  }

  int res = 0;
  REP(d, 28) {
    // cerr << "> " << d << endl;
    int mask = (1 << d) - 1;
    int target = 1 << d;
    vector<int> tas[2];
    vector<int> tbs[2];
    REP(i, n) {
      tas[(as[i] >> d)&1].push_back(as[i] & mask);
      tbs[(bs[i] >> d)&1].push_back(bs[i] & mask);
    }
    REP(i, 2) {
      sort(tas[i].begin(), tas[i].end());
      sort(tbs[i].begin(), tbs[i].end());
    }
    ll cur00 = 0;
    ll cur01 = 0;
    ll cur10 = 0;
    ll cur11 = 0;
    // REP(i, 2) {
    //   cerr << "as[" << i << "]:";
    //   REP(j, tas[i].size()) {
    //     cerr << " " << tas[i][j];
    //   }
    //   cerr << endl;
    //   cerr << "bs[" << i << "]:";
    //   REP(j, tbs[i].size()) {
    //     cerr << " " << tbs[i][j];
    //   }
    //   cerr << endl;
    // }
    {
      int ib0 = (int)tbs[0].size() - 1;
      REP(ia, tas[0].size()) {
        // (0,0)carryあり
        while(ib0 >= 0 && tas[0][ia] + tbs[0][ib0] >= target) {
          --ib0;
        }
        cur00 += (int)tbs[0].size()-1 - ib0;
      }
    }
    {
      reverse(tas[0].begin(), tas[0].end());
      int ib1 = 0;
      REP(ia, tas[0].size()) {
        // (0,1)carryなし
        while(ib1 < (int)tbs[1].size() && tas[0][ia] + tbs[1][ib1] < target) {
          ++ib1;
        }
        cur01 += ib1;
      }
    }
    {
      int ib1 = (int)tbs[1].size() - 1;
      REP(ia, tas[1].size()) {
        // (1,1)carryあり
        while(ib1 >= 0 && tas[1][ia] + tbs[1][ib1] >= target) {
          --ib1;
        }
        cur11 += (int)tbs[1].size()-1 - ib1;
      }
    }
    {
      reverse(tas[1].begin(), tas[1].end());
      int ib0 = 0;
      REP(ia, tas[1].size()) {
        // (1,0)carryなし
        while(ib0 < (int)tbs[0].size() && tas[1][ia] + tbs[0][ib0] < target) {
          ++ib0;
        }
        cur10 += ib0;
      }
    }

    // cerr << ">> " << cur00 << " " << cur01 << " "  << cur10 << " "  << cur11 << " "  << endl;
    if((cur00+cur01+cur10+cur11) % 2 == 1) {
      res |= 1 << d;
    }
  }
  printf("%d\n", res);

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:41:7: error: 'sort' was not declared in this scope; did you mean 'short'?
   41 |       sort(tas[i].begin(), tas[i].end());
      |       ^~~~
      |       short
a.cc:71:7: error: 'reverse' was not declared in this scope
   71 |       reverse(tas[0].begin(), tas[0].end());
      |       ^~~~~~~
a.cc:92:7: error: 'reverse' was not declared in this scope
   92 |       reverse(tas[1].begin(), tas[1].end());
      |       ^~~~~~~
Language: C++

#include<cstdio>
#include<cstring>
#include<cmath>
#include<cstdlib>
#include<ctime>
#include<algorithm>
#include<queue>
#include<vector>
#define ll long long
#define max(a,b) (a>b?a:b)
#define min(a,b) (a<b?a:b)
#define inf 0x3f3f3f3f
#define mod 1000000007
#define eps 1e-18
inline ll read()
{
    ll tmp=0; char c=getchar(),f=1;
    for(;c<'0'||'9'<c;c=getchar())if(c=='-')f=-1;
    for(;'0'<=c&&c<='9';c=getchar())tmp=(tmp<<3)+(tmp<<1)+c-'0';
    return tmp*f;
}
using namespace std;
ll a[200010],b[200010];
ll tmp[200010];
int n;
ll find(ll k)
{
    int l=1,r=n+1;
    while(l<r){
        int mid=(l+r)>>1;
        if(tmp[mid]>=k)r=mid;else l=mid+1;
    }
    return l;
}
int main()
{
    int i,k;
    n=read();
    for(i=1;i<=n;i++)a[i]=read();
    for(i=1;i<=n;i++)b[i]=read();
    ll ans=0;
    for(k=1;k<=29;k++){
        ll base=(1<<k)-1;
        for(i=1;i<=n;i++)tmp[i]=b[i]&base;
        sort(tmp+1,tmp+n+1);
        ll cnt=0; 
        for(i=1;i<=n;i++)
            cnt+=n-find((1<<(k-1))-(a[i]&base))+1;
        for(i=1;i<=n;i++)
            cnt-=find((1<<k)+(1<<(k-1))-(a[i]&base))-find((1<<k)-(a[i]&base));
        if(cnt&1)ans+=(1<<(k-1));
    }
    printf("%lld\n",ans);
}

arc092 D

Compiler output:
a.cc:56:1: error: 'arc092' does not name a type
   56 | arc092 D
      | ^~~~~~
Language: C++

#include <bits/stdc++.h>

using namespace std;

#pragma GCC optimize ("-O3", "unroll-loops")

// @LayCurse : https://yukicoder.me/submissions/87387
#define mygc(c) (c)=getchar_unlocked()
#define mypc(c) putchar_unlocked(c)
void reader(int *x) { int k, m = 0; *x = 0; for (;;) { mygc(k); if (k == '-') { m = 1; break; }if ('0' <= k&&k <= '9') { *x = k - '0'; break; } }for (;;) { mygc(k); if (k<'0' || k>'9')break; *x = (*x) * 10 + k - '0'; }if (m)(*x) = -(*x); }
void writer(int x, char c) { int s = 0, m = 0; char f[10]; if (x<0)m = 1, x = -x; while (x)f[s++] = x % 10, x /= 10; if (!s)f[s++] = 0; if (m)mypc('-'); while (s--)mypc(f[s] + '0'); mypc(c); }


constexpr int MAX_N = 200000;
int n, a[MAX_N], b[MAX_N];

int main() {
    // Input
    reader(&n);
    for (int i = 0; i < n; ++i) reader(&a[i]);
    for (int i = 0; i < n; ++i) reader(&b[i]);

    // Solve
    constexpr int block_a = 4, block_b = 8192;
    int ans = 0;
    for (int i = 0; i + (block_a - 1) < n; i += block_a) {
        for (int j = 0; j + (block_b - 1) < n; j += block_b)
            for (int k = j; k < j + block_b; ++k) {
                ans ^= a[i] + b[k];
                ans ^= a[i + 1] + b[k];
                ans ^= a[i + 2] + b[k];
                ans ^= a[i + 3] + b[k];
            }

        for (int j = n & ~(block_b - 1); j < n; ++j) {
            ans ^= a[i] + b[k];
            ans ^= a[i + 1] + b[k];
            ans ^= a[i + 2] + b[k];
            ans ^= a[i + 3] + b[k];
        }
    }

    // rest of iterations
    for (int i = n & ~(block_a - 1); i < n; ++i) {
        for (int j = 0; j + (block_b - 1) < n; j += block_b)
            for (int k = j; k < j + block_b; ++k)
                ans ^= a[i] + b[k];

        for (int j = n & ~(block_b - 1); j < n; ++j)
            ans ^= a[i] + b[j];
    }

    // Output
    writer(ans, '\n');

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:36:29: error: 'k' was not declared in this scope
   36 |             ans ^= a[i] + b[k];
      |                             ^
Language: C++

#include <stdio.h>
#include <zmmintrin.h>

using namespace std;

typedef int lli;


// lli n;
// vll a,b;
// vll s,t;
// lli ans;
//
// int main(){
//   cin >> n;
//   a = vll(n);b = vll(n);
//   for(lli i = 0;i < n;i++) cin >> a[i];
//   for(lli i = 0;i < n;i++) cin >> b[i];
//   lli ub = max(*max_element(a.begin(),a.end()),*max_element(b.begin(),b.end()))*2;
//   for(lli bit = 1;bit <= ub;bit <<= 1){
//     s = a;t = b;
//     bit <<= 1;
//     for(lli i = 0;i < n;i++) s[i] %= bit,t[i] %= bit;
//     bit >>= 1;
//     sort(t.begin(),t.end());
//     lli c = 0;
//     for(lli i = 0;i < n;i++){
//       c += lower_bound(t.begin(),t.end(),bit*2-s[i])-lower_bound(t.begin(),t.end(),bit*1-s[i]);
//       c += lower_bound(t.begin(),t.end(),bit*4-s[i])-lower_bound(t.begin(),t.end(),bit*3-s[i]);
//     }
//     ans |= ((c%2)*bit);
//   }
//   cout << ans << endl;
// }

lli n;
int a[200000];
int b[400000];

__m512i x[12500];
__m512i y[16][12500];
__m512i ans;
int dest[16];
int out;

void solve_big(){
  n = 200000;
  for(lli i = 0;i < n;i++) b[n+i] = b[i];
  for(lli i = 0,j = 0;i < n;i+=16,j++) x[j] = _mm_load_si512((__m512i*)(a+i));
  for(lli k = 0;k < 16;k++){
    for(lli i = 0,j = 0;i < n;i+=16,j++) y[k][j] = _mm_loadu_si512((__m512i*)(b+i+k));
  }

  for(lli i = 0;i < 12500;i++){
    for(lli j = 0;j < 12500;j++){
      for(lli k = 0;k < 16;k++){
        ans = _mm512_xor_si512(ans,_mm512_add_epi32(x[i],y[k][j]));
      }
    }
  }
  _mm_store_si512((__m512i*)(dest), ans);
  for(lli i = 0;i < 16;i++) out ^= dest[i];
  printf("%d\n", out);

}

int main(){
  scanf("%d",&n);
  for(lli i = 0;i < n;i++) scanf("%d",a+i);
  for(lli i = 0;i < n;i++) scanf("%d",b+i);

  if(n >= 100000) solve_big();
  else{
    for(lli i = 0;i < n;i++){
      for(lli j = 0;j < n;j++){
        out ^= (a[i]+b[j]);
      }
    }
    printf("%d\n", out);
  }
}


Compiler output:
a.cc:2:10: fatal error: zmmintrin.h: No such file or directory
    2 | #include <zmmintrin.h>
      |          ^~~~~~~~~~~~~
compilation terminated.
Language: C

int hout(){
  int rt=H[1],i,j=2,k=H[--C];
  for(i=1;hyouka(i,C);i=j)H[i]=H[j=i*2+1-hyouka(i*2,i*2+1)];
  H[j/2]=k;
  return rt;
}
int lb(int l,int r,long long n,int *d){
  if(n>(1<<29))return r;
  while(l-r){
    int m=(l+r)/2;
    n<=d[m]?(r=m):(l=m+1);
  }
  return l;
}

int n,i,j,s=0,c,a[200010],b[200010],d[200010];
long long k;
int main(){
  scanf("%d",&n);
  for(i=0;i<n;i++)scanf("%d",&a[i]);
  for(i=0;i<n;i++)scanf("%d",&b[i]);
  for(i=0;i<30;i++){
    R=C=1;
    k=(1<<i);//printf("%d\n",k);
    for(j=0;j<n;j++)hin((int)(b[j]&((2LL<<i)-1)));
    for(j=0;j<n;j++)d[j]=N[hout()];
    //for(j=0;j<n;j++)printf("%d ",d[j]);printf("\n");
    for(j=c=0;j<n;j++)c+=(lb(0,n,2*k-(a[j]&((2LL<<i)-1)),d)-
			  lb(0,n,1*k-(a[j]&((2LL<<i)-1)),d)+
			  n-
			  lb(0,n,3LL*k-(a[j]&((2LL<<i)-1)),d));
    s+=c%2*k;
    /*or(j=0;j<n;j++)printf("%d %d %d %d\n",s,
			   lb(0,n,2*k-(a[j]&((2<<i)-1)),d),
			   lb(0,n,1*k-(a[j]&((2<<i)-1)),d),
			   lb(0,n,3*k-(a[j]&((2<<i)-1)),d));//*/
  }
  printf("%d\n",s);
  return 0;
}


Compiler output:
main.c: In function 'hout':
main.c:2:10: error: 'H' undeclared (first use in this function)
    2 |   int rt=H[1],i,j=2,k=H[--C];
      |          ^
main.c:2:10: note: each undeclared identifier is reported only once for each function it appears in
main.c:2:27: error: 'C' undeclared (first use in this function)
    2 |   int rt=H[1],i,j=2,k=H[--C];
      |                           ^
main.c:3:11: error: implicit declaration of function 'hyouka' [-Wimplicit-function-declaration]
    3 |   for(i=1;hyouka(i,C);i=j)H[i]=H[j=i*2+1-hyouka(i*2,i*2+1)];
      |           ^~~~~~
main.c: In function 'main':
main.c:19:3: error: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
   19 |   scanf("%d",&n);
      |   ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | int hout(){
main.c:19:3: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
   19 |   scanf("%d",&n);
      |   ^~~~~
main.c:19:3: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:23:5: error: 'R' undeclared (first use in this function)
   23 |     R=C=1;
      |     ^
main.c:23:7: error: 'C' undeclared (first use in this function)
   23 |     R=C=1;
      |       ^
main.c:25:21: error: implicit declaration of function 'hin' [-Wimplicit-function-declaration]
   25 |     for(j=0;j<n;j++)hin((int)(b[j]&((2LL<<i)-1)));
      |                     ^~~
main.c:26:26: error: 'N' undeclared (first use in this function)
   26 |     for(j=0;j<n;j++)d[j]=N[hout()];
      |                          ^
main.c:38:3: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
   38 |   printf("%d\n",s);
      |   ^~~~~~
main.c:38:3: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:38:3: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
main.c:38:3: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C

#include<stdio.h>
#include<iostream>
using namespace std;

long long R = 1, C = 1, H[2000010], N[2000010];

//評価関数（いまはMAX）
int hyouka(int a, int b) {
    if (C < b)return 1;
    if (C < a || b == 0)return 0;
    return N[H[a]] < N[H[b]] ? 1 : 0;
}

//挿入関数
void hin(long long a) {
    int i = C++;
    for (N[H[0] = R] = a; hyouka(0, i / 2); i /= 2)H[i] = H[i / 2];
    H[i] = R++;
}

//取り出す関数
int hout() {
    int rt = H[1], i, j = 2, k = H[--C];
    for (i = 1; hyouka(i, C); i = j)H[i] = H[j = i * 2 + 1 - hyouka(i * 2, i * 2 + 1)];
    H[j / 2] = k;
    return rt;
}

int lb(long long l, long long r, long long n, long long *d) {
    while (l < r) {
        int m = (l + r) / 2;
        n <= d[m] ? (r = m) : (l = m + 1);
    }
    return l;
}

long long n, i, j, k, c, s = 0, a[200010], b[200010], d[200010];

int main() {
    scanf("%lld", &n);
    for (i = 0; i < n; i++)scanf("%lld", &a[i]);
    for (i = 0; i < n; i++)scanf("%lld", &b[i]);
    for (i = 0; i < 30; i++) {
        R = C = 1;
        k = (1 << i);//printf("%d\n",k);
        for (j = 0; j < n; j++)hin(b[j] % (2 * k));
        for (j = 0; j < n; j++)d[j] = N[hout()];
        //for(j=0;j<n;j++)printf("%d ",d[j]);printf("\n");
        for (j = c = 0; j < n; j++)
            c += (lb(0, n, 2 * k - a[j] % (2 * k), d) - lb(0, n, 1 * k - a[j] % (2 * k), d) +
                  lb(0, n, 4 * k - a[j] % (2 * k), d) - lb(0, n, 3 * k - a[j] % (2 * k), d));
        s += c % 2 * k;
        //for(j=0;j<n;j++)printf("%d %d %d %d %d\n",s,lb(0,n,2*k-a[j]%(2*k),d),lb(0,n,1*k-a[j]%(2*k),d),lb(0,n,4*k-a[j]%(2*k),d),lb(0,n,3*k-a[j]%(2*k),d));
    }
    printf("%lld\n", s);
    return 0;
}


Compiler output:
main.c:2:9: fatal error: iostream: No such file or directory
    2 | #include<iostream>
      |         ^~~~~~~~~~
compilation terminated.
Language: C

#include<stdio.h>
int R=1,C=1,H[200010],N[200010];
//評価関数（いまはMAX）
int hyouka(int a,int b){
  if(C<b)return 1;
  if(C<a||b==0)return 0;
  return N[H[a]]<N[H[b]]?1:0;
}
//挿入関数
void hin(int a){
  int i=C++;
  for(N[H[0]=R]=a;hyouka(0,i/2);i/=2)H[i]=H[i/2];
  H[i]=R++;
}
//取り出す関数
int hout(){
  int rt=H[1],i,j=2,k=H[--C];
  for(i=1;hyouka(i,C);i=j)H[i]=H[j=i*2+1-hyouka(i*2,i*2+1)];
  H[j/2]=k;
  return rt;
}
int lb(int l,int r,long long n,int *d){
  int m=(l+r)/2;
  if(l==r)return m;
  return n<=d[m]?lb(l,m,n,d):lb(m+1,r,n,d);
}

int n,i,j,c,s=0,a[200010],b[200010],d[200010];
long long k
int main(){
	scanf("%lld",&n);
	for(i=0;i<n;i++)scanf("%lld",&a[i]);
	for(i=0;i<n;i++)scanf("%lld",&b[i]);
	for(i=0;i<30;i++){
		R=C=1;
		k=(1<<i);//printf("%d\n",k);
		for(j=0;j<n;j++)hin(b[j]%(2*k));
		for(j=0;j<n;j++)d[j]=N[hout()];
		//for(j=0;j<n;j++)printf("%d ",d[j]);printf("\n");
		for(j=c=0;j<n;j++)c+=(lb(0,n,2*k-a[j]%(2*k),d)-lb(0,n,1*k-a[j]%(2*k),d)+lb(0,n,4*k-a[j]%(2*k),d)-lb(0,n,3*k-a[j]%(2*k),d));
		s+=c%2*k;
		//for(j=0;j<n;j++)printf("%d %d %d %d %d\n",s,lb(0,n,2*k-a[j]%(2*k),d),lb(0,n,1*k-a[j]%(2*k),d),lb(0,n,4*k-a[j]%(2*k),d),lb(0,n,3*k-a[j]%(2*k),d));
	}
	printf("%lld\n",s);
	return 0;
}

Compiler output:
main.c:29:12: error: expected ';' before 'int'
   29 | long long k
      |            ^
      |            ;
   30 | int main(){
      | ~~~         
main.c: In function 'main':
main.c:36:17: error: 'k' undeclared (first use in this function)
   36 |                 k=(1<<i);//printf("%d\n",k);
      |                 ^
main.c:36:17: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include<stdio.h>
int R=1,C=1,H[200010],N[200010];
//評価関数（いまはMAX）
int hyouka(int a,int b){
  if(C<b)return 1;
  if(C<a||b==0)return 0;
  return N[H[a]]<N[H[b]]?1:0;
}
//挿入関数
void hin(int a){
  int i=C++;
  for(N[H[0]=R]=a;hyouka(0,i/2);i/=2)H[i]=H[i/2];
  H[i]=R++;
}
//取り出す関数
int hout(){
  int rt=H[1],i,j=2,k=H[--C];
  for(i=1;hyouka(i,C);i=j)H[i]=H[j=i*2+1-hyouka(i*2,i*2+1)];
  H[j/2]=k;
  return rt;
}
int lb(int l,int r,int n,int *d){
  int m=(l+r)/2;
  if(l==r)return m;
  return n<=d[m]?lb(l,m,n,d):lb(m+1,r,n,d);
}

int n,i,j,c,s=0,a[200010],b[200010],d[200010];
int main(){
	scanf("%lld",&n);
	for(i=0;i<n;i++)scanf("%lld",&a[i]);
	for(i=0;i<n;i++)scanf("%lld",&b[i]);
	for(i=0;i<29;i++){
		R=C=1;
		k=(1<<i);//printf("%d\n",k);
		for(j=0;j<n;j++)hin(b[j]%(2*k));
		for(j=0;j<n;j++)d[j]=N[hout()];
		//for(j=0;j<n;j++)printf("%d ",d[j]);printf("\n");
		for(j=c=0;j<n;j++)c+=(lb(0,n,2*k-a[j]%(2*k),d)-lb(0,n,1*k-a[j]%(2*k),d)+lb(0,n,4*k-a[j]%(2*k),d)-lb(0,n,3*k-a[j]%(2*k),d));
		s+=c%2*k;
		//for(j=0;j<n;j++)printf("%d %d %d %d %d\n",s,lb(0,n,2*k-a[j]%(2*k),d),lb(0,n,1*k-a[j]%(2*k),d),lb(0,n,4*k-a[j]%(2*k),d),lb(0,n,3*k-a[j]%(2*k),d));
	}
	printf("%lld\n",s);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:35:17: error: 'k' undeclared (first use in this function)
   35 |                 k=(1<<i);//printf("%d\n",k);
      |                 ^
main.c:35:17: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#define _CRT_SECURE_NO_WARNINGS
#include<cstdio>
#include<utility>
#include<vector>

int main(void) {
	using uint32 = unsigned int;
	uint32 n, ans = 0;
	scanf("%u", &n);
	std::vector<uint32> a(n), b(n), c(n), d(n);
	for (auto &e : a)
		scanf("%u", &e);
	for (auto &e : b)
		scanf("%u", &e);
	if (n & 1) {
		for (const auto e : a)
			ans ^= e;
		for (const auto e : b)
			ans ^= e;
	}
	for (auto &e : a)e = ~e;
	for (uint32 i = 0;i < 28;++i) {
		const uint32 pbit = (uint32)1 << i;
		uint32 midA = n, midB = n;
		for (const auto e : a)
			midA -= e >> i & 1;
		for (const auto e : b) 
			midB -= e >> i & 1;
		uint32 lA = 0, lB = 0;
		for (const auto e : a)
			c[e & pbit ? midA++ : lA++] = e;
		for (const auto e : b)
			d[e & pbit ? midB++ : lB++] = e;
		std::swap(a, c);
		std::swap(b, d);
		lA = 0;
		lB = 0;
		const uint32 mask = (pbit << 1) - 1;
		while (lA < n) {
			while (lB < n && (a[lA] & mask) >= (b[lB] & mask))
				++lB;
			if (n - lB & 1)
				ans ^= pbit << 1;
			++lA;
		}
	}
	printf("%u\n", ans);
	return 0;
}

Compiler output:
main.c:2:9: fatal error: cstdio: No such file or directory
    2 | #include<cstdio>
      |         ^~~~~~~~
compilation terminated.
Language: C++

  vector<long long> a(N),b(N);
    int c[N],d[N];
     
    for(i=0;i<N;i++){
    cin >> a[i];
    }
    for(i=0;i<N;i++){
    cin >> b[i];
    }
    v=0;
for(i=0;i<N;i++){
    v = v +N*a[i] + N*b[i];
}
    if(v%2==0){
    	z=0;
    }else{
        z=1;
    }
    	for(m=2;m<=30;m++){
    		e=0;
    	for(i=0;i<N;i++){
    		j=pow(2,m);
    		c[i]=a[i]%j;
    		d[i]=b[i]%j;
    	}
    		sort(d,d+N);
    		for(i=0;i<N;i++){
    	x=pow(2,(m-1))-c[i];
    	y=pow(2,m)-c[i];
    		j=solve(N,d,x);
    		k=solve(N,d,y);
    	x=3*pow(2,(m-1))-c[i];
    		l=solve(N,d,x);
    		x=N-l+k-j;
    		e += x;
    		}
    	if(e%2==1){
    		z += pow(2,m-1);
    	}
    	}
    	cout << z << endl;
    }

Compiler output:
a.cc:1:3: error: 'vector' does not name a type
    1 |   vector<long long> a(N),b(N);
      |   ^~~~~~
a.cc:2:11: error: 'N' was not declared in this scope
    2 |     int c[N],d[N];
      |           ^
a.cc:2:16: error: 'N' was not declared in this scope
    2 |     int c[N],d[N];
      |                ^
a.cc:4:5: error: expected unqualified-id before 'for'
    4 |     for(i=0;i<N;i++){
      |     ^~~
a.cc:4:13: error: 'i' does not name a type
    4 |     for(i=0;i<N;i++){
      |             ^
a.cc:4:17: error: 'i' does not name a type
    4 |     for(i=0;i<N;i++){
      |                 ^
a.cc:7:5: error: expected unqualified-id before 'for'
    7 |     for(i=0;i<N;i++){
      |     ^~~
a.cc:7:13: error: 'i' does not name a type
    7 |     for(i=0;i<N;i++){
      |             ^
a.cc:7:17: error: 'i' does not name a type
    7 |     for(i=0;i<N;i++){
      |                 ^
a.cc:10:5: error: 'v' does not name a type
   10 |     v=0;
      |     ^
a.cc:11:1: error: expected unqualified-id before 'for'
   11 | for(i=0;i<N;i++){
      | ^~~
a.cc:11:9: error: 'i' does not name a type
   11 | for(i=0;i<N;i++){
      |         ^
a.cc:11:13: error: 'i' does not name a type
   11 | for(i=0;i<N;i++){
      |             ^
a.cc:14:5: error: expected unqualified-id before 'if'
   14 |     if(v%2==0){
      |     ^~
a.cc:16:6: error: expected unqualified-id before 'else'
   16 |     }else{
      |      ^~~~
a.cc:19:9: error: expected unqualified-id before 'for'
   19 |         for(m=2;m<=30;m++){
      |         ^~~
a.cc:19:17: error: 'm' does not name a type
   19 |         for(m=2;m<=30;m++){
      |                 ^
a.cc:19:23: error: 'm' does not name a type
   19 |         for(m=2;m<=30;m++){
      |                       ^
a.cc:41:9: error: 'cout' does not name a type
   41 |         cout << z << endl;
      |         ^~~~
a.cc:42:5: error: expected declaration before '}' token
   42 |     }
      |     ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<int(n);++i)
#define all(a) a.begin(),a.end()
#define lb(s,x) lower_bound(all(s),x)-s.begin()

int main(void){
    int n;
    cin>>n;
    vector<int> a(n),b(n);
    rep(i,n)cin>>a[i];
    rep(i,n)cin>>b[i];

    int res = 0;
    rep(k,29){
        vector<int> bk(n);
        rep(i,n){
            bk[i] = b[i] % (1<<(k+1));
        }
        sort(all(bk));
        int bit = 0;
        int ak = a[i] % (1<<(k+1));
        rep(i,n){
            int pos[4];
            rep(m,4){
                pos[m] = lb(bk, ((m+1)<<k) - ak);
            }
            bit ^= (pos[3]-pos[2]+pos[1]-pos[0])%2;
        }
        res |= bit<<k;
    }
    cout<<res<<endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:22:20: error: 'i' was not declared in this scope
   22 |         int ak = a[i] % (1<<(k+1));
      |                    ^
Language: C++

#include <iostream>
#include <vector>
using namespace std;

int main(){
    int N;
    cin >> N;
    vector<int> a(N), b(N);
    for(int i=0; i<N; i++) cin >> a[i];
    for(int i=0; i<N; i++) cin >> b[i];

    vector<int> c[29];
    for(int i=0; i<29; i++){
        c[i].resize(N);
        for(int j=0; j<N; j++) c[i][j] = b[j] % (1<<(i+1));
        sort(c[i].begin(), c[i].end());
    }

    vector<int> cnt(29, 0);
    for(int i=0; i<29; i++){
        for(int j=0; j<N; j++){
            int d = a[j] % (1<<(i+1));
            cnt[i] += lower_bound(c[i].begin(), c[i].end(), (1<<(i+1))-d)
                    - lower_bound(c[i].begin(), c[i].end(), (1<<i)-d);
            cnt[i] += lower_bound(c[i].begin(), c[i].end(), (1<<(i+2))-d)
                    - lower_bound(c[i].begin(), c[i].end(), (1<<i) + (1<<(i+1)) - d);
            //if( !(d & (1<<i)) )
            //    cnt[i] += c[i].end()
            //            - lower_bound(c[i].begin(), c[i].end(), (1<<i) - d);
            //else
            //    cnt[i] += upper_bound(c[i].begin(), c[i].end(), (1<<i) - d) - c[i].begin();
        }
        cerr << cnt[i] << " ";
    }
    cerr << endl;

    int ans = 0;
    for(int i=0; i<29; i++)
        if(cnt[i] % 2)
            ans |= 1<<i;
    cout << ans << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:9: error: 'sort' was not declared in this scope; did you mean 'short'?
   16 |         sort(c[i].begin(), c[i].end());
      |         ^~~~
      |         short
Language: C

#include <cstdio>
#include <cstdlib>

int main() {
    int n;
    int a[200000], b[200000];

    scanf("%d", &n);

    for (int i = 0; i < n; i++) {
        scanf("%d", a + i);
    }

    for (int i = 0; i < n; i++) {
        scanf("%d", b + i);
    }

    int ans = 0;

    int m = n / 8 * 8;

    for (int i = 0; i < m; i += 8) {
        for (int j = 0; j < n; j++) {
            ans ^= a[i] + b[j];
            ans ^= a[i + 1] + b[j];
            ans ^= a[i + 2] + b[j];
            ans ^= a[i + 3] + b[j];
            ans ^= a[i + 4] + b[j];
            ans ^= a[i + 5] + b[j];
            ans ^= a[i + 6] + b[j];
            ans ^= a[i + 7] + b[j];
        }
    }

    for (int i = m; i < n; i++) {
        for (int j = 0; j < n; j++) {
            ans ^= a[i] + b[j];
        }
    }

    printf("%d\n", ans);
}


Compiler output:
main.c:1:10: fatal error: cstdio: No such file or directory
    1 | #include <cstdio>
      |          ^~~~~~~~
compilation terminated.
Language: C++

//
//  D - Two Sequences.cpp
//  AtCoder Regular Contest 092
//
//  Created by Huang,Zhiqiang on 2018/3/22.
//  Copyright © 2018年 Huang,Zhiqiang. All rights reserved.
//

#include <iostream>
using namespace std;

typedef long long ll;
const int maxn=200010;

ll a[maxn],b[maxn],c[maxn];
ll n;

ll Midfind(ll k)
{
    ll l=0,r=n+1;
    while(l<r-1)
    {
        ll mid=(l+r)/2;
        if(c[mid]>=k)
            r=mid;
        else
            l=mid;
    }
    return r;
}

int main()
{
    //    int n;
    cin >> n;
    for(int i=1; i<=n; i++)
        cin >> a[i];
    for(int i=1; i<=n; i++)
        cin >> b[i];
    ll sum=0;
    for(int k=1; k<=29; k++)
    {
        ll res=(1<<k)-1;
        for(int i=1; i<=n; i++)
            c[i]=b[i]&res;
        sort(c+1,c+n+1);
        ll cnt=0;
        for(int i=1; i<=n; i++)
            cnt+=n-Midfind((1<<(k-1))-(a[i]&res))+1;
        for(int i=1; i<=n; i++)
            cnt-=Midfind(((1<<k)+(1<<(k-1)))-(a[i]&res))-Midfind((1<<k)-(a[i]&res));
        if(cnt%2)
            sum+=(1<<(k-1));
    }
    cout << sum << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:46:9: error: 'sort' was not declared in this scope; did you mean 'short'?
   46 |         sort(c+1,c+n+1);
      |         ^~~~
      |         short
Language: C++


int n,a[200000],b[2000000];
int main(){
  scanf("%d",&n);
  for(int i=0;i<n;i++)
    scanf("%d",&a[i]);
  for(int i=0;i<n;i++)
    scanf("%d",&b[i]);

  printf("%d",n);
  return 0;

  int ans = a[0]+b[0];

  for(int i=1;i<n;i++)
    ans ^= a[0] + b[i];
  for(int i=1;i<n;i++)
    for(int j=0;j<n;j++)
      ans ^= a[i] + b[j];
  printf("%d",ans);
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:3: error: 'scanf' was not declared in this scope
    4 |   scanf("%d",&n);
      |   ^~~~~
a.cc:10:3: error: 'printf' was not declared in this scope
   10 |   printf("%d",n);
      |   ^~~~~~
a.cc:1:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 |
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define con continue
#define bk break
#define LL long long
#define db double
#define pt cout<<'\n'
#define ms(a, b) memset((a), (b), sizeof(a))
#define mp make_pair
#define endl '\n'
LL inf=2147483647;const long long ll =9223372036854775807,ninf=1000000000;const double eps = 1e-6; const long long nll =1000000000000000000;
#define sz size()
#define len(X) strlen(X)
#define IOS ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0)
#define ULL unsigned long long
#define de cout<<"test"<<endl;
#define st system("pause");
#define F first
#define S second
class StonesOnATree
{
    public:
int minStones(vector <int> p, vector <int> w)
{

}
};

int main()
{
int a;
while(cin>>a){
    int A[200005]={};
    int B[200005]={};
    for(int i=0;i<a;i++){
        cin>>A[i];
    }
    for(int i=0;i<a;i++){
        cin>>B[i];
    }
    
    int ans=0;
    for(int i=(1<<28);i;i>>1){
        
        for(int i=0;i<a;i++){
            A[i]%= (i*2-;
            B[i]%= (i*2);
        }
        sort(A,A+a);
        sort(B,B+a);
        int t1=0,t2=0,t3=0;
        int t=0;
        for(int j=a-1;j>=0;j--){
            
            while(t1<a&&A[j]+B[t1]<i)
                t1++;
            while(t2<a&&A[j]+B[t2]<i*2)
                t2++;
            while(t3<a&&A[j]+B[t3]<i*3)
                t3++;
            
            t+=t2-t1+a-t3;
            t%=2;
        }
        if(t==1)
            ans+=i;
    }
    cout<<ans<<endl;
    
    
    
    
    
    
    
}



    return 0;
}


Compiler output:
a.cc: In member function 'int StonesOnATree::minStones(std::vector<int>, std::vector<int>)':
a.cc:26:1: warning: no return statement in function returning non-void [-Wreturn-type]
   26 | }
      | ^
a.cc: In function 'int main()':
a.cc:46:25: error: expected primary-expression before ';' token
   46 |             A[i]%= (i*2-;
      |                         ^
a.cc:46:25: error: expected ')' before ';' token
   46 |             A[i]%= (i*2-;
      |                    ~    ^
      |                         )
Language: C++

// ARC092
// D - Two Sequences

#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef pair<int, int> pii;
typedef pair<ll, int> pli;

const int K = 28;

int N;
vector<int> a, b;

int main() {
    cin >> N;
    a.resize(N);
    b.resize(N);
    for (int i = 0; i < N; i++) {
        cin >> a[i];
    }
    for (int i = 0; i < N; i++) {
        cin >> b[i];
    }

    int ans = 0;
    for (int k = 0; k <= K; k++) {
        vector<int> q(N);
        for (int i = 0; i < N; i++) {
            q[i] = b[i] & ((1 << (k + 1)) - 1);
        }
        sort(q.begin(), q.end());

        int cnt = 0;
        for (int i = 0; i < N; i++) {
            int p = a[i] & ((1 << (k + 1)) - 1);
            cnt += lower_bound(q.begin(), q.end(), (4 << k) - p) -
                   // cnt += q.end() - lower_bound(q.begin(), q.end(), (3 << k)
                   // - p);
                   cnt += lower_bound(q.begin(), q.end(), (2 << k) - p) -
                          lower_bound(q.begin(), q.end(), (1 << k) - p);
        }
        if (cnt & 1) {
            ans |= (1 << k);
        }
    }

    cout << ans << endl;

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:37:17: error: no match for 'operator+=' (operand types are 'int' and '__gnu_cxx::__normal_iterator<int*, std::vector<int> >')
   37 |             cnt += lower_bound(q.begin(), q.end(), (4 << k) - p) -
      |             ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   38 |                    // cnt += q.end() - lower_bound(q.begin(), q.end(), (3 << k)
      |                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   39 |                    // - p);
      |                    ~~~~~~~~
   40 |                    cnt += lower_bound(q.begin(), q.end(), (2 << k) - p) -
      |                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   41 |                           lower_bound(q.begin(), q.end(), (1 << k) - p);
      |                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Language: C++

#include "bits/stdc++.h"
#define in std::cin
#define out std::cout
#define rep(i,N) for(int i=0;i<N;++i)
typedef long long int LL;

LL N;
std::vector<LL>a, b;

int main()
{
	in >> N;
	a.resize(N), b.resize(N);
	rep(i, N) in >> a[i];
	rep(i, N) in >> b[i];
	LL ans = 0;
	rep(i, 30)
	{
		LL power = 1LL << i, powerPlus = 1Ll << (i + 1);
		auto aa = a, bb = b;
		rep(j, N)
		{
			aa[j] %= powerPlus;
			bb[j] %= powerPlus;
		}
		std::sort(bb.begin(), bb.end());
		LL one = 0;
		rep(j, N)
		{
			one += std::lower_bound(bb.begin(), bb.end(), 2 * power - aa[j])
				- std::lower_bound(bb.begin(), bb.end(), power - aa[j]);
			one += std::lower_bound(bb.begin(), bb.end(), 4 * power - aa[j])
				- std::lower_bound(bb.begin(), bb.end(), 3 * power - aa[j]);
		}
		if (one % 2 == 1) ans += power;
	}
	out << ans << std::endl;
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:19:50: error: unable to find numeric literal operator 'operator""Ll'
   19 |                 LL power = 1LL << i, powerPlus = 1Ll << (i + 1);
      |                                                  ^~~