Submission #879044

#	Time	Username	Problem	Language	Result	Execution time	Memory
879044		Elvin_Fritl	Red-blue table (IZhO19_stones)	C++17	0 / 100	42 ms	1372 KiB

stones

#include <bits/stdc++.h>
using namespace std;
 
#define io                      \
    ios_base::sync_with_stdio(0); \
    cin.tie(0);                   \
    cout.tie(0);
 
 
typedef long long ll;
 
ll bp(ll n,ll m){
    if(m == 0){
        return 1;
    }
    if(m == 1){
        return n;
    }
    if(m%2==0){
        return bp(n*n,m/2);
    }
    return n*bp(n,m-1);
}
 
 
const int N =  1020, M = 33, inf = 1e9 + 99;
const ll inff = 1e12;
 
int main()
{
	io;
	
	int t;
	cin >> t;
	while(t--) {
		int n , m;
		cin >> n >> m;
		vector<vector<char>> v(n , vector<char>(m));
		char cc = '+';
		if(n > m) {
			cc = '-';
		}
		vector<vector<char>> tmp(n , vector<char>(m , cc));
		int ans = max(n , m);
		int fi[n]={0} , se[m] = {0};
		for(int i=0;i<m;i++) {
			v[0][i] = '-';
			se[i] ++;
		}
		for(int i=1;i<n;i++) {
			v[i][0] = '+';
			fi[i] ++;
		}
		for(int i=1;i<n;i++) {
			for(int j=1;j<m;j++) {
				if((j + i)%2 == 0) {
					v[i][j] = '+';
					fi[i] ++;
				}
				else {
					v[i][j] = '-';
					se[j] ++;
				}
			}
		}
		int res = 0;
		for(int i=0;i<n;i++) {
			res += (fi[i] > n/2);
		}
		for(int i=0;i<m;i++) {
			res += (se[i] > n/2);
		}
		if(res < ans) {
			res = ans;
			v = tmp;
		}
		cout << res << endl;
		for(int i=0;i<n;i++) {
			for(int j=0;j<m;j++) {
				cout << v[i][j];
			}
			cout << endl;
		}
	}
    
    return 0;
 
}

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