oj.uz

Submission #519479

# Submission time Handle Problem Language Result Execution time Memory
519479 2022-01-26T12:19:09 Z shmad Red-blue table (IZhO19_stones) C++17
11 / 100
 31 ms 1844 KB 
    #pragma GCC optimize("O3", "unroll-loops") // "Ofast"
    #pragma GCC target("avx2", "bmi", "bmi2", "lzcnt", "popcnt") 
     
    #include <bits/stdc++.h>
     
    #define int long long
    #define vt vector
    #define pb push_back
    #define all(x) (x).begin(), (x).end()
    #define sz(x) (int)(x).size()
    #define ff first
    #define ss second
    #define dbg(x) cerr << #x << " = " << x << '\n'
     
    using namespace std;
    using ll = long long;
    using pii = pair<int, int>;
    using vvi = vt< vt<int> >;
     
    const int N = 1e6 + 5, mod = 1e9 + 7, inf = 1e18 + 7, B = 500, LIM = (1ll << 60);
    const double eps = 1e-6;
     
    void solve () {
    	int n, m;
    	cin >> n >> m;
    	vt< vt<char> > a(n + 1, vt<char> (m + 1, '+'));
    	if (m == 1) {
    		cout << n << '\n';
    		goto here;
    	}
    	if (n == 1) {
    		cout << m << '\n';
    		for (int j = 1; j <= m; j++) a[1][j] = '-';
    		goto here;
    	}
    	if ((n & 1) && (m & 1)) {
    		cout << n - 1 + m - 1 << '\n';
    		for (int i = 1; i < n; i++) {
    			for (int j = 1; j < m; j++) {
    				if ((i + j) & 1) a[i][j] = '-';
    			}
    		}
    		for (int j = 1; j <= m; j++) a[n][j] = '-';
    		goto here;
    	}
    	here:
    	for (int i = 1; i <= n; i++) {
    		for (int j = 1; j <= m; j++) cout << a[i][j] ;
    		cout << '\n';
    	}
    	cout << '\n';
    }
     
    bool testcases = 1;
                      
    signed main() {
    #ifdef ONLINE_JUDGE
    	freopen(".in", "r", stdin);
    	freopen(".out", "w", stdout);
    #endif
        cin.tie(0) -> sync_with_stdio(0);
        int test = 1;
        if (testcases) cin >> test;
        for (int cs = 1; cs <= test; cs++) {
            solve();
        }
    }

Subtask #1
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 316 KB Output is correct
2 Incorrect 1 ms 312 KB Expected integer, but "++++" found
3 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 312 KB Expected integer, but "++" found
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 316 KB Output is correct
2 Incorrect 1 ms 312 KB Expected integer, but "++++" found
3 Halted 0 ms 0 KB -

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 1324 KB Output is correct
2 Correct 28 ms 1584 KB Output is correct
3 Correct 31 ms 1844 KB Output is correct

Subtask #5
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 21 ms 1368 KB Expected integer, but "++++++++++++++++++++++++" found
2 Halted 0 ms 0 KB -

Subtask #6
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 316 KB Output is correct
2 Incorrect 1 ms 312 KB Expected integer, but "++++" found
3 Halted 0 ms 0 KB -