Submission #335789

#	Time	Username	Problem	Language	Result	Execution time	Memory
335789		beksultan04	Red-blue table (IZhO19_stones)	C++14	27 / 100	46 ms	1516 KiB

stones

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pii pair<int,int>
#define OK puts("OK");
#define fr first
#define sc second
#define ret return
#define scan1(a) scanf("%lld",&a);
#define scan2(a,b) scanf("%lld %lld",&a, &b);
#define scan3(a,b,c) scanf("%lld %lld %lld",&a,&b,&c);
#define all(s) s.begin(),s.end()
#define pb push_back
#define endi puts("");
const int N = 1e6+12,INF=1e9+7;
int m1[N],p[N];
char q[1001][1001];
main(){
    int t;
    scan1(t)
    while (t--){
        int i,j,n,m,ans=0;
        scan2(n,m)
        if (n <= m){
            for (i=0;i<n;++i){
                for (j=0;j<m;++j){
                    if (i < n/2+1){
                        q[i][j]='-';
                        m1[j]++;
                    }
                    else {
                        q[i][j]='+';
                        p[i]++;

                    }
                }
            }
        }
        else {
            for (i=0;i<n;++i){
                for (j=0;j<m;++j){
                    if (j < m/2+1){
                        q[i][j]='+';
                        p[i]++;
                    }
                    else {
                        m1[j]++;
                        q[i][j]='-';
                    }
                }
            }
        }
        ans = max(n,m);
        ans += min(n-1,m-1)/2;
        cout <<ans<<"\n";
        for (i=0;i<n;++i){
            for (j=0;j<m;++j){
                cout <<q[i][j];
            }
            endi;
        }
    }
}

Compilation message (stderr)

stones.cpp:18:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   18 | main(){
      |      ^
stones.cpp: In function 'int main()':
stones.cpp:9:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    9 | #define scan1(a) scanf("%lld",&a);
      |                  ~~~~~^~~~~~~~~~~
stones.cpp:20:5: note: in expansion of macro 'scan1'
   20 |     scan1(t)
      |     ^~~~~
stones.cpp:10:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   10 | #define scan2(a,b) scanf("%lld %lld",&a, &b);
      |                    ~~~~~^~~~~~~~~~~~~~~~~~~~
stones.cpp:23:9: note: in expansion of macro 'scan2'
   23 |         scan2(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