ShaysXIA/CodeInsightBench huggingface dataset:
Problem: 2062C - Cirno and Operations
Language: C++23 (GCC 14-64, msys2)

Previous submission (verdict: Wrong answer on test 6):
#include <bits/stdc++.h>
using namespace std;
 
int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    
    int t;
    cin >> t;
    while(t--){
        int n;
        cin >> n;
        vector<long long> seq(n);
        for (int i = 0; i < n; i++){
            cin >> seq[i];
        }
 
        // Option 0: Do nothing.
        long long best = 0;
        for (auto &x : seq) {
            best += x;
        }
 
        // We now simulate performing the difference operation repeatedly.
        // (Remember: after each difference operation the sum of the resulting sequence
        // equals "last - first" of that sequence. And by a reversal we may achieve the absolute value.)
        vector<long long> cur = seq;
        // We can apply difference operations until the current sequence has length 1.
        while(cur.size() > 1){
            int sz = cur.size();
            vector<long long> nxt(sz - 1);
            for (int i = 0; i < sz - 1; i++){
                nxt[i] = cur[i+1] - cur[i];
            }
            cur = nxt;
            long long candidate;
            if(cur.size() == 1) {
                candidate = llabs(cur[0]);
            } else {
                candidate = llabs(cur.back() - cur.front());
            }
            best = max(best, candidate);
        }
 
        cout << best << "\n";
    }
    return 0;
}


Submission (verdict: Wrong answer on test 1):
#include <bits/stdc++.h>
using namespace std;
 
int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
 
    int t;
    cin >> t;
    while(t--){
        int n;
        cin >> n;
        vector<long long> a(n);
        long long sum = 0;
        for (int i = 0; i < n; i++){
            cin >> a[i];
            sum += a[i];
        }
 
        // Option 0: Do nothing.
        long long best = sum;
 
        // Let "cur" be our current sequence.
        vector<long long> cur = a;
        // We now simulate taking differences repeatedly.
        while(cur.size() > 1){
            // When allowed to reverse before taking differences,
            // we can force the new sequence’s sum to be the absolute difference
            // between its last and first element.
            long long candidate = llabs(cur.back() - cur.front());
            best = max(best, candidate);
 
            // Compute the difference–sequence.
            vector<long long> nxt(cur.size() - 1);
            for (int i = 0; i < (int)cur.size() - 1; i++){
                nxt[i] = cur[i+1] - cur[i];
            }
            cur = nxt;
        }
        // (When the current sequence has length 1, its "sum" is its only element.)
        if(cur.size() == 1)
            best = max(best, llabs(cur[0]));
 
        cout << best << "\n";
    }
    return 0;
}
Problem: 2062C - Cirno and Operations
Language: C++23 (GCC 14-64, msys2)


Submission (verdict: Wrong answer on test 6):
#include <bits/stdc++.h>
using namespace std;
 
int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    
    int t;
    cin >> t;
    while(t--){
        int n;
        cin >> n;
        vector<long long> seq(n);
        for (int i = 0; i < n; i++){
            cin >> seq[i];
        }
 
        // Option 0: Do nothing.
        long long best = 0;
        for (auto &x : seq) {
            best += x;
        }
 
        // We now simulate performing the difference operation repeatedly.
        // (Remember: after each difference operation the sum of the resulting sequence
        // equals "last - first" of that sequence. And by a reversal we may achieve the absolute value.)
        vector<long long> cur = seq;
        // We can apply difference operations until the current sequence has length 1.
        while(cur.size() > 1){
            int sz = cur.size();
            vector<long long> nxt(sz - 1);
            for (int i = 0; i < sz - 1; i++){
                nxt[i] = cur[i+1] - cur[i];
            }
            cur = nxt;
            long long candidate;
            if(cur.size() == 1) {
                candidate = llabs(cur[0]);
            } else {
                candidate = llabs(cur.back() - cur.front());
            }
            best = max(best, candidate);
        }
 
        cout << best << "\n";
    }
    return 0;
}
Problem: 2060D - Subtract Min Sort
Language: C++17 (GCC 7-32)

Previous submission (verdict: Wrong answer on test 2):
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

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

        if(a[0]>a[1])
        {
            cout<<"NO"<<"\n";
            continue;
        }
        int flag = 0;
        for (int i = 1; i < n - 1; i++)
        {
            if (a[i] <= a[i - 1] && a[i] >= a[i + 1])
            {
                flag = 1;
                break;
            }
        }

        
        if (flag)
        {
            cout << "NO" << "\n";
        }
        else
        {
            cout << "YES" << "\n";
        }
    }
}

Submission (verdict: Wrong answer on test 2):
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

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

        if (a[0] > a[1])
        {
            cout << "NO" << "\n";
            continue;
        }
        int flag = 0;
        for (int i = 0; i < n; i += 2)
        {
            if (a[i] >= a[i + 1])
            {
                flag = 1;
                break;
            }
        }

        if (flag)
        {
            cout << "NO" << "\n";
        }
        else
        {
            cout << "YES" << "\n";
        }
    }
}
Problem: 2060D - Subtract Min Sort
Language: C++17 (GCC 7-32)

Previous submission (verdict: Wrong answer on test 2):
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

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

        if (a[0] > a[1])
        {
            cout << "NO" << "\n";
            continue;
        }
        int flag = 0;
        for (int i = 0; i < n; i += 2)
        {
            if (a[i] >= a[i + 1])
            {
                flag = 1;
                break;
            }
        }

        if (flag)
        {
            cout << "NO" << "\n";
        }
        else
        {
            cout << "YES" << "\n";
        }
    }
}

Submission (verdict: Accepted):
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int main()
{
    int t;
    cin >> t;
    while (t--)
    {
        int n;
        cin >> n;
        int a[n + 1];
        for (int i = 1; i <= n; i++)
        {
            cin >> a[i];
        }

        int mini;
        for (int i = 1; i < n; i++)
        {
            mini = min(a[i], a[i + 1]);
            a[i] -= mini;
            a[i + 1] -= mini;
        }
        int flag = 0;

        for (int i = 1; i < n; i++)
        {
            if (a[i] > a[i + 1])
            {
                flag = 1;
                break;
            }
        }

        if (flag)
        {
            cout << "NO" << "\n";
        }
        else
        {
            cout << "YES" << "\n";
        }
    }
}
Problem: 2060D - Subtract Min Sort
Language: C++17 (GCC 7-32)

Previous submission (verdict: Wrong answer on test 2):
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

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

        int flag = 0;
        for (int i = 1; i < n - 1; i++)
        {
            if (a[i] <= a[i - 1] && a[i] >= a[i + 1])
            {
                flag = 1;
                break;
            }
        }

        if (flag)
        {
            cout << "NO" << "\n";
        }
        else
        {
            cout << "YES" << "\n";
        }
    }
}

Submission (verdict: Wrong answer on test 2):
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

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

        if(a[0]>a[1])
        {
            cout<<"NO"<<"\n";
            continue;
        }
        int flag = 0;
        for (int i = 1; i < n - 1; i++)
        {
            if (a[i] <= a[i - 1] && a[i] >= a[i + 1])
            {
                flag = 1;
                break;
            }
        }

        
        if (flag)
        {
            cout << "NO" << "\n";
        }
        else
        {
            cout << "YES" << "\n";
        }
    }
}
Problem: 2060D - Subtract Min Sort
Language: C++17 (GCC 7-32)


Submission (verdict: Wrong answer on test 2):
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

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

        int flag = 0;
        for (int i = 1; i < n - 1; i++)
        {
            if (a[i] <= a[i - 1] && a[i] >= a[i + 1])
            {
                flag = 1;
                break;
            }
        }

        if (flag)
        {
            cout << "NO" << "\n";
        }
        else
        {
            cout << "YES" << "\n";
        }
    }
}
Problem: 2061D - Kevin and Numbers
Language: C++17 (GCC 7-32)


Submission (verdict: Wrong answer on test 2):
#include<bits/stdc++.h>
//#include<ext/pb_ds/assoc_container.hpp>
//#include<ext/pb_ds/tree_policy.hpp>
//using namespace __gnu_pbds;
using namespace std;
//#define  ordered_set  tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update>
#define dipto ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define nl '\n'
#define yes             cout<<"YES"<<'\n';
#define no              cout<<"NO"<<'\n';
#define gcd(x,y)        __gcd(x,y)
#define lcm(x,y)        y*x/__gcd(x,y)
#define pb              push_back
#define nextp(x)        next_permutation(x.begin(),x.end())
#define all(ar)         ar.begin(), ar.end()
#define rall(ar)        ar.rbegin(), ar.rend()
#define Unique(x)       x.erase(unique(all(x)), x.end());
#define MAX(x)          *max_element(all(x));
#define MIN(x)          *min_element(all(x));
#define SUM(a)          accumulate(all(a),0LL);
#define fixpoint(x)     cout<<fixed<<setprecision(x)
#define clz(x)          __builtin_clz(x) // count leading zeros of 32 bits.
                                         //like 4=00000000....100(leading 29 ta)
#define ctz(x)          __builtin_ctz(x) //count trailing zeros                                         
#define popcount(x)     __builtin_popcount(x)    //count number of ones's(bits)

#define vll             vector<ll>
#define F               first
#define S               second
#define cinv(v)         for(auto& i:v)cin>>i;
#define coutv(v)        for(auto& i:v)cout<<i<<' ';

//.....BIT_MASKING...........
int Set(int N,int pos){return N=N | (1<<pos);}
int reset(int N,int pos){return N= N & ~(1<<pos);}
bool check(int N,int pos){return (bool)(N & (1<<pos));}

//int dx[]={-1,+1,0,0}; //[Grid move's]
//int dy[]={0,0,-1,+1};
typedef long long ll;
//ll big_mod(ll a,ll b,ll m){if(b==0) return 1;ll x=big_mod(a,b/2,m);x=(x*x)%m;if(b%2)x=(x*a)%m;return x;}

void solve()
{
   ll n,m; cin>>n>>m;
   priority_queue<ll>p,pq;
   for(ll i=0;i<n;i++){
    ll a; cin>>a;
    p.push(a);
   }
   for(ll i=0;i<m;i++){
    ll a; cin>>a;
    pq.push(a);
   }
   while(!pq.empty()){
    ll x=pq.top(); pq.pop();
    ll y=p.top();
    //cout<<x<<" "<<y<<nl;
    if(x==y){
      p.pop(); continue;
    }
    if(x>y){
       pq.push(x/2); pq.push((x+1)/2);
    }
     if(x<y){
        no
        return;
    }
    if(pq.size()>p.size()){
      no
      return;
    }
   }
   if(p.size()>1)  no
   else  yes

}
int main()
{
    dipto
    ll test=1;cin>>test;
    while(test--)
    {
      solve();
    }
}
Problem: 2050E - Three Strings
Language: C++17 (GCC 7-32)

Previous submission (verdict: Wrong answer on test 1):
#include <bits/stdc++.h>

using namespace std;



void solve(){

    string a, b, c;

    cin >> a;

    cin >> b;

    cin >> c;

    long long int i = 0;

    long long int j = 0;

    long long int m = a.size();

    long long int n = b.size();

    vector<vector<long long int>>memo(m+1,vector<long long int>(n+1,0));

    long long int one = 1;

    for(i=m-1;i>=0;i--){

        if(a[i]==c[n+i]){

            memo[i][n] = memo[i+1][n];

        }

        else{

            memo[i][n] = memo[i+1][n]+1;

        }

    }

    for(j=n-1;j>=0;j--){

        if(b[j]==c[m+j]){

            memo[m][j] = memo[m][j+1];

        }

        else{

            memo[m][j] = memo[m][j+1]+1;

        }

    }

    for(i=m-1;i>=0;i--){

        for(j=n-1;j>=0;j--){

            long long int temp = INT_MAX;

            if(a[i]==c[i+j]){

                temp = min(temp,memo[i+1][j]);

            }

            if(b[j]==c[i+j]){

                temp = min(temp,memo[i][j+1]);

            }

            if(a[i]!=c[i+j]){

                temp = min(temp,one+memo[i+1][j]);

            }

            if(b[j]!=c[i+j]){

                temp = min(temp,one+memo[i][j+1]);

            }

            memo[i][j] = temp;

        }

    }

    //cout << memo[0][0] << " " << memo[0][1] << " " << memo[1][0] << " " << memo[1][1] << endl;

}

int main(){

    long long int t;

    cin >> t;

    while(t--){

        solve();

    }

    return 0;

}

Submission (verdict: Accepted):
#include <bits/stdc++.h>

using namespace std;



void solve(){

    string a, b, c;

    cin >> a;

    cin >> b;

    cin >> c;

    long long int i = 0;

    long long int j = 0;

    long long int m = a.size();

    long long int n = b.size();

    vector<vector<long long int>>memo(m+1,vector<long long int>(n+1,0));

    long long int one = 1;

    for(i=m-1;i>=0;i--){

        if(a[i]==c[n+i]){

            memo[i][n] = memo[i+1][n];

        }

        else{

            memo[i][n] = memo[i+1][n]+1;

        }

    }

    for(j=n-1;j>=0;j--){

        if(b[j]==c[m+j]){

            memo[m][j] = memo[m][j+1];

        }

        else{

            memo[m][j] = memo[m][j+1]+1;

        }

    }

    for(i=m-1;i>=0;i--){

        for(j=n-1;j>=0;j--){

            long long int temp = INT_MAX;

            if(a[i]==c[i+j]){

                temp = min(temp,memo[i+1][j]);

            }

            if(b[j]==c[i+j]){

                temp = min(temp,memo[i][j+1]);

            }

            if(a[i]!=c[i+j]){

                temp = min(temp,one+memo[i+1][j]);

            }

            if(b[j]!=c[i+j]){

                temp = min(temp,one+memo[i][j+1]);

            }

            memo[i][j] = temp;

        }

    }

    cout << memo[0][0] << endl;

}

int main(){

    long long int t;

    cin >> t;

    while(t--){

        solve();

    }

    return 0;

}
Problem: 2050E - Three Strings
Language: C++17 (GCC 7-32)

Previous submission (verdict: Wrong answer on test 1):
#include <bits/stdc++.h>

using namespace std;



void solve(){

    string a, b, c;

    cin >> a;

    cin >> b;

    cin >> c;

    long long int i = 0;

    long long int j = 0;

    long long int m = a.size();

    long long int n = b.size();

    vector<vector<long long int>>memo(m+1,vector<long long int>(n+1,0));

    long long int one = 1;

    for(i=m-1;i>=0;i--){

        if(a[i]==c[n+i]){

            memo[i][n] = memo[i+1][n];

        }

        else{

            memo[i][n] = memo[i+1][n]+1;

        }

    }

    for(j=n-1;j>=0;j--){

        if(b[j]==c[m+j]){

            memo[m][j] = memo[m][j+1];

        }

        else{

            memo[m][j] = memo[m][j+1]+1;

        }

    }

    for(i=m-1;i>=0;i--){

        for(j=n-1;j>=0;j--){

            long long int temp = INT_MAX;

            if(a[i]==c[i+j]){

                temp = min(temp,memo[i+1][j]);

            }

            if(b[j]==c[i+j]){

                temp = min(temp,memo[i][j+1]);

            }

            if(a[i]!=c[i+j]){

                temp = min(temp,one+memo[i+1][j]);

            }

            if(b[j]!=c[i+j]){

                temp = min(temp,one+memo[i][j+1]);

            }

        }

    }

    cout << memo[0][0] << endl;

}

int main(){

    long long int t;

    cin >> t;

    while(t--){

        solve();

    }

    return 0;

}

Submission (verdict: Wrong answer on test 1):
#include <bits/stdc++.h>

using namespace std;



void solve(){

    string a, b, c;

    cin >> a;

    cin >> b;

    cin >> c;

    long long int i = 0;

    long long int j = 0;

    long long int m = a.size();

    long long int n = b.size();

    vector<vector<long long int>>memo(m+1,vector<long long int>(n+1,0));

    long long int one = 1;

    for(i=m-1;i>=0;i--){

        if(a[i]==c[n+i]){

            memo[i][n] = memo[i+1][n];

        }

        else{

            memo[i][n] = memo[i+1][n]+1;

        }

    }

    for(j=n-1;j>=0;j--){

        if(b[j]==c[m+j]){

            memo[m][j] = memo[m][j+1];

        }

        else{

            memo[m][j] = memo[m][j+1]+1;

        }

    }

    for(i=m-1;i>=0;i--){

        for(j=n-1;j>=0;j--){

            long long int temp = INT_MAX;

            if(a[i]==c[i+j]){

                temp = min(temp,memo[i+1][j]);

            }

            if(b[j]==c[i+j]){

                temp = min(temp,memo[i][j+1]);

            }

            if(a[i]!=c[i+j]){

                temp = min(temp,one+memo[i+1][j]);

            }

            if(b[j]!=c[i+j]){

                temp = min(temp,one+memo[i][j+1]);

            }

            memo[i][j] = temp;

        }

    }

    //cout << memo[0][0] << " " << memo[0][1] << " " << memo[1][0] << " " << memo[1][1] << endl;

}

int main(){

    long long int t;

    cin >> t;

    while(t--){

        solve();

    }

    return 0;

}
Problem: 2050E - Three Strings
Language: C++17 (GCC 7-32)


Submission (verdict: Wrong answer on test 1):
#include <bits/stdc++.h>

using namespace std;



void solve(){

    string a, b, c;

    cin >> a;

    cin >> b;

    cin >> c;

    long long int i = 0;

    long long int j = 0;

    long long int m = a.size();

    long long int n = b.size();

    vector<vector<long long int>>memo(m+1,vector<long long int>(n+1,0));

    long long int one = 1;

    for(i=m-1;i>=0;i--){

        if(a[i]==c[n+i]){

            memo[i][n] = memo[i+1][n];

        }

        else{

            memo[i][n] = memo[i+1][n]+1;

        }

    }

    for(j=n-1;j>=0;j--){

        if(b[j]==c[m+j]){

            memo[m][j] = memo[m][j+1];

        }

        else{

            memo[m][j] = memo[m][j+1]+1;

        }

    }

    for(i=m-1;i>=0;i--){

        for(j=n-1;j>=0;j--){

            long long int temp = INT_MAX;

            if(a[i]==c[i+j]){

                temp = min(temp,memo[i+1][j]);

            }

            if(b[j]==c[i+j]){

                temp = min(temp,memo[i][j+1]);

            }

            if(a[i]!=c[i+j]){

                temp = min(temp,one+memo[i+1][j]);

            }

            if(b[j]!=c[i+j]){

                temp = min(temp,one+memo[i][j+1]);

            }

        }

    }

    cout << memo[0][0] << endl;

}

int main(){

    long long int t;

    cin >> t;

    while(t--){

        solve();

    }

    return 0;

}
Problem: 2057C - Trip to the Olympiad
Language: C++20 (GCC 13-64)


Submission (verdict: Wrong answer on test 1):
#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main()
{
    int t;
    cin>>t;
    while(t--){
        int l,r;
        cin>>l>>r;
        int a,b,c;
        bitset<64> num1(l),num2(r);
        for(int i=0;i<64;i++){
            if(num1[i]!=num2[i]){
                a=pow(2,i);
            }
        }
        b=a-1;
        for(int i=l;i<r;i++){
            if(i!=a && i!=b) {
                c=i;
                break;
            }
        }
        cout<<a<<" "<<b<<" "<<c<<endl;
    }

    return 0;
}
Problem: 2057C - Trip to the Olympiad
Language: C++20 (GCC 13-64)

Previous submission (verdict: Wrong answer on test 1):
#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main()
{
    int t;
    cin>>t;
    while(t--){
        int l,r;
        cin>>l>>r;
        int a=0,b,c;
        bitset<64> num1(l),num2(r);
        for(int i=63;i>=0;i--){
            if(num1[i]==1 && num1[i]==num2[i]) a+=pow(2,i); 
            if(num1[i]!=num2[i]){
                a+=pow(2,i);
                break;
            }
        }
        b=a-1;
        for(int i=l;i<r;i++){
            if(i!=a && i!=b) {
                c=i;
                break;
            }
        }
        cout<<a<<" "<<b<<" "<<c<<endl;
    }

    return 0;
}

Submission (verdict: Accepted):
#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main()
{
    int t;
    cin>>t;
    while(t--){
        int l,r;
        cin>>l>>r;
        int a=0,b,c;
        bitset<64> num1(l),num2(r);
        for(int i=63;i>=0;i--){
            if(num1[i]==1 && num1[i]==num2[i]) a+=pow(2,i); 
            if(num1[i]!=num2[i]){
                a+=pow(2,i);
                break;
            }
        }
        b=a-1;
        for(int i=l;i<=r;i++){
            if(i!=a && i!=b) {
                c=i;
                break;
            }
        }
        cout<<a<<" "<<b<<" "<<c<<endl;
    }

    return 0;
}
Problem: 2057C - Trip to the Olympiad
Language: C++20 (GCC 13-64)

Previous submission (verdict: Wrong answer on test 1):
#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main()
{
    int t;
    cin>>t;
    while(t--){
        int l,r;
        cin>>l>>r;
        int a,b,c;
        bitset<64> num1(l),num2(r);
        for(int i=0;i<64;i++){
            if(num1[i]!=num2[i]){
                a=pow(2,i);
            }
        }
        b=a-1;
        for(int i=l;i<r;i++){
            if(i!=a && i!=b) {
                c=i;
                break;
            }
        }
        cout<<a<<" "<<b<<" "<<c<<endl;
    }

    return 0;
}

Submission (verdict: Wrong answer on test 1):
#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main()
{
    int t;
    cin>>t;
    while(t--){
        int l,r;
        cin>>l>>r;
        int a=0,b,c;
        bitset<64> num1(l),num2(r);
        for(int i=63;i>=0;i--){
            if(num1[i]==1 && num1[i]==num2[i]) a+=pow(2,i); 
            if(num1[i]!=num2[i]){
                a+=pow(2,i);
                break;
            }
        }
        b=a-1;
        for(int i=l;i<r;i++){
            if(i!=a && i!=b) {
                c=i;
                break;
            }
        }
        cout<<a<<" "<<b<<" "<<c<<endl;
    }

    return 0;
}