Submission #371155

#	Time	Username	Problem	Language	Result	Execution time	Memory
371155		daniel920712	Red-blue table (IZhO19_stones)	C++14	27 / 100	56 ms	1924 KiB

stones

#include <iostream>
#include <stdio.h>
#include <stdlib.h>

using namespace std;
int all[1005][1005];
int main()
{
    int T,N,M,ans=0,i,j;
    scanf("%d",&T);
    while(T--)
    {
        ans=0;
        scanf("%d %d",&N,&M);
        if(N<=M)
        {
            ans=M;
            for(i=0;i<=N/2;i++) for(j=0;j<M;j++) all[i][j]=0;
            for(i=N/2+1;i<N;i++)
            {
                ans++;
                for(j=0;j<M;j++) all[i][j]=1;
            }
        }
        else
        {
            ans=N;
            for(i=0;i<=M/2;i++) for(j=0;j<N;j++) all[j][i]=1;
            for(i=M/2+1;i<M;i++)
            {
                ans++;
                for(j=0;j<N;j++) all[j][i]=0;
            }
        }
        printf("%d\n",ans);
        for(i=0;i<N;i++)
        {
            for(j=0;j<M;j++)
            {
                if(all[i][j]==0) printf("-");
                else printf("+");
            }
            printf("\n");
        }
    }
    return 0;
}

Compilation message (stderr)

stones.cpp: In function 'int main()':
stones.cpp:10:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   10 |     scanf("%d",&T);
      |     ~~~~~^~~~~~~~~
stones.cpp:14:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   14 |         scanf("%d %d",&N,&M);
      |         ~~~~~^~~~~~~~~~~~~~~

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