oj.uz

Submission #168887

# Submission time Handle Problem Language Result Execution time Memory
168887 2019-12-17T03:16:11 Z abil Red-blue table (IZhO19_stones) C++14
15 / 100
 124 ms 4084 KB 
#include <bits/stdc++.h>

#define fr first
#define sc second
#define pb push_back
#define mk make_pair
#define all(s) s.begin(),s.end()
//#define int long long

using namespace std;

const int N = (1e3 + 12);
const int mod = (1e9 + 7);
const int INF = (0x3f3f3f3f);

int a[N][N], b[N];

main()
{
	int test, n, m;
	scanf("%d", &test);
	while(test--){
		scanf("%d%d", &n, &m);
		if(n >= m){
			int ans = n;
			int midn = n / 2 + 1, midm = m / 2 + 1;
			vector<pair<int,int > > vec;
			for(int i = 1;i <= m; i++){
				for(int j = 1;j <= n; j++){
					vec.pb({b[j], j});
				}
				sort(all(vec));
				if(vec[midm - 1].fr < n - midn){
					ans++;
					for(int j = 0;j < midm; j++){
						a[vec[j].sc][i] = 1;
						b[vec[j].sc]++;
					}
					vec.clear();
				}
				else{
					break;
				}
			}
			cout << ans << endl;
			for(int i = 1;i <= n; i++){
				for(int j = 1;j <= m; j++){
					if(a[i][j]){
						printf("-");
					}
					else{
						printf("+");
					}
				}
				cout << endl;
			}
		}
		else{
			int ans = m;
			int midn = n / 2 + 1, midm = m / 2 + 1;
			vector<pair<int,int > > vec;
			for(int i = 1;i <= n; i++){
				for(int j = 1;j <= m; j++){
					vec.pb({b[j], j});
				}
				sort(all(vec));
				if(vec[midn - 1].fr < m - midm){
					ans++;
					for(int j = 0;j < midn; j++){
						a[i][vec[j].sc] = 1;
						b[vec[j].sc]++;
					}
					vec.clear();
				}
				else{
					break;
				}
			}
			cout << ans << endl;
			for(int i = 1;i <= n; i++){
				for(int j = 1;j <= m; j++){
					if(a[i][j]){
						printf("+");
					}
					else{
						printf("-");
					}
				}
				cout << endl;
			}
		}
		for(int i = 1;i <= n; i++){
			for(int j = 1;j <= m; j++){
				a[i][j] = 0;
			}
		}
		for(int i = 1;i <= max(n, m); i++){
			b[i] = 0;
		}
	}
}

Compilation message

stones.cpp:18:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^
stones.cpp: In function 'int main()':
stones.cpp:21:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &test);
  ~~~~~^~~~~~~~~~~~~
stones.cpp:23:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &n, &m);
   ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB in the table A+B is not equal to 4
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 15 ms 504 KB in the table A+B is not equal to 48

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB in the table A+B is not equal to 4
2 Halted 0 ms 0 KB -

Subtask #4
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 124 ms 1860 KB in the table A+B is not equal to 118
2 Halted 0 ms 0 KB -

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 98 ms 1912 KB Output is correct
2 Correct 75 ms 4084 KB Output is correct
3 Correct 68 ms 3320 KB Output is correct

Subtask #6
0 / 31.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB in the table A+B is not equal to 4
2 Halted 0 ms 0 KB -