Submission #170859

#	Time	Username	Problem	Language	Result	Execution time	Memory
170859		beksultan04	Red-blue table (IZhO19_stones)	C++14	27 / 100	50 ms	1912 KiB

stones

#include <bits/stdc++.h>
using namespace std;
#define fr first
#define sc second
#define pb push_back
#define mk make_pair
#define OK puts("OK");
#define sz(s) (int)s.size()
#define pii pair<int,int>
#define all(s) s.begin(), s.end()
#define allr(s) s.rbegin(), s.rend()
#define rep(i,n) for (i=0;i<(n);++i)
#define rep1(i,n) for (i=1;i<=(n);++i)
#define ret return
#define nemeshay ios::sync_with_stdio(0),cin.tie(0);
const int N=1e6+12,INF=1e9+7;
int q[1001][1001];
main(){
    int t;
    cin>>t;
    while (t--){

        int n,m,i,j;
        cin>>n>>m;
        if (m>n){
            n--;
            cout <<m+n/2<<"\n";
            for (i=0;i<n/2;++i)
                for (j=0;j<m;++j)
                    q[i][j]=1;

            n++;
        }
        else {
            for (i=0;i<n;++i)
                for (j=0;j<m;++j)
                    q[i][j]=1;
            m--;
            cout <<n+m/2<<"\n";
            for (i=0;i<n;++i)
                for (j=0;j<m/2;++j)
                    q[i][j]=0;
            m++;
        }
        for (i=0;i<n;++i){
            for (j=0;j<m;++j){
                if (q[i][j])cout <<'+';
                else cout <<'-';
            }
            cout <<"\n";
        }
        for (i=0;i<n;++i){
            for (j=0;j<m;++j){
                q[i][j]=0;
            }
        }
    }
}

Compilation message (stderr)

stones.cpp:18:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(){
      ^

• Subtask 1: 17 / 17
• Subtask 2: 10 / 10
• Subtask 3: 0 / 16
• Subtask 4: 0 / 11
• Subtask 5: 0 / 15
• Subtask 6: 0 / 31