oj.uz

Submission #855880

# Submission time Handle Problem Language Result Execution time Memory
855880 2023-10-02T06:28:59 Z Halym2007 Red-blue table (IZhO19_stones) C++11
0 / 100
 1 ms 344 KB 
#include <bits/stdc++.h>
using namespace std;
const int N = 1e3 + 5;
char jog[N][N];
int main () {
	freopen("input.txt", "r", stdin);
	int t;
	cin >> t;
	while ( t-- ) {
		int n, m, jogap = 0;
		cin >> n >> m;
		if (min(n, m) == 1) {
			char c;
			if (n == 1) c = '-';
			else c = '+';
			jogap = max (n, m);
			for (int i = 1; i <= n; ++i) {
				for (int j = 1; j <= m; ++j) {
					jog[i][j] = c;
				}
			}
		}
		else if (n >= m) {
			for (int i = 1; i <= n; ++i) {
				for (int j = 1; j <= m; ++j) {
					jog[i][j] = '1';
				}
			}
			for (int i = 1; i <= n; ++i) {
				for (int j = 1; j <= m / 2 + 1; ++j) {
					jog[i][j] = '+';
				}
			}
			jogap = n + (m - (m / 2 + 1));
			for (int i = 1; i <= n; ++i) {
				for (int j = 1; j <= m; ++j) {
					if (jog[i][j] == '1') jog[i][j] = '-';
				}
			}
		}
		else {
			for (int i = 1; i <= n; ++i) {
				for (int j = 1; j <= m; ++j) {
					jog[i][j] = '1';
				}
			}
			for (int i = 1; i <= m; ++i) {
				for (int j = 1; j <= n / 2 + 1; ++j) {
					jog[j][i] = '-';
				}
			}
			jogap = m + (n - (n / 2 + 1));
			for (int i = 1; i <= n; ++i) {
				for (int j = 1; j <= m; ++j) {
					if (jog[i][j] == '1') jog[i][j] = '+';
				}
			}
		}
		//
		int ans = 0;
		for (int i = 1; i <= n; ++i) {
			int r = 0;
			for (int j = 1; j <= m; ++j) {
				if (jog[i][j] == '+') {
					r++;
				}
				else r--;
			}
			if (r > 0) ans++; 
		}
		for (int i = 1; i <= m; ++i) {
			int b = 0;
			for (int j = 1; j <= n; ++j) {
				if (jog[j][i] == '-') b++;
				else b--;
			}
			if (b > 0) ans++;
		} 
		//
//		if (jogap != ans) {
//			cout << "input : " << ans << "  " << n << " " << m << endl;
//		}
		cout << jogap << endl;
		for (int i = 1; i <= n; ++i) {
			for (int j = 1; j <= m; ++j) {
				cout << jog[i][j];
			}
			cout << endl;
		}
	}
}

Compilation message

stones.cpp: In function 'int main()':
stones.cpp:6:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    6 |  freopen("input.txt", "r", stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 344 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 344 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -

Subtask #4
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -

Subtask #5
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -

Subtask #6
0 / 31.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 344 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -