Submission #898939

#	Time	Username	Problem	Language	Result	Execution time	Memory
898939		otarius	Red-blue table (IZhO19_stones)	C++17	0 / 100	18 ms	1372 KiB

stones

#include <iostream>
#include <algorithm>
#include <vector>
#include <set>
#include <cstring>
#include <queue>
#include <map>
#include <cmath>
#include <iomanip>
using namespace std;

void __print(int x) { cerr << x; }

void __print(long x) { cerr << x; }

void __print(long long x) { cerr << x; }

void __print(unsigned x) { cerr << x; }

void __print(unsigned long x) { cerr << x; }

void __print(unsigned long long x) { cerr << x; }

void __print(float x) { cerr << x; }

void __print(double x) { cerr << x; }

void __print(long double x) { cerr << x; }

void __print(char x) { cerr << '\'' << x << '\''; }

void __print(const char *x) { cerr << '\"' << x << '\"'; }

void __print(const string &x) { cerr << '\"' << x << '\"'; }

void __print(bool x) { cerr << (x ? "true" : "false"); }

template<typename T, typename V>
void __print(const pair<T, V> &x) {
    cerr << '{';
    __print(x.first);
    cerr << ',';
    __print(x.second);
    cerr << '}';
}

template<typename T>
void __print(const T &x) {
    int f = 0;
    cerr << '{';
    for (auto &i: x) cerr << (f++ ? "," : ""), __print(i);
    cerr << "}";
}

void _print() { cerr << "]\n"; }

template<typename T, typename... V>
void _print(T t, V... v) {
    __print(t);
    if (sizeof...(v)) cerr << ", ";
    _print(v...);
}

#ifndef ONLINE_JUDGE
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
#define debug(x...)
#endif

#define ff first
#define sc second
#define pb push_back
#define ll long long
#define pll pair<ll, ll>
#define pii pair <int, int>
#define ull unsigned long long

// #define int long long
// #define int unsigned long long

const ll inf = 1e9 + 7;
const ll weirdMod = 998244353;

void solve() {
    int n, m;
    cin >> n >> m;
    bool swp = 0;
    if (n < m) {
        swap(n, m);
        swp = 1;
    } char c[n + 1][m + 1];
    for (int i = 1; i <= n; i++)
        for (int j = 1; j <= m; j++)
            c[i][j] = '+';
    for (int i = 1; i <= (n + 1) / 2; i++)
        for (int j = 1; j <= (m - 1) / 2; j++)
            c[i][j] = '-';
    cout << n + (m - 1) / 2 << '\n';
    if (swp) {
        for (int j = 1; j <= m; j++) {
            for (int i = 1; i <= n; i++) {
                if (c[i][j] == '+') cout << '-';
                else cout << '+';
            } cout << '\n';
        }
    } else {
        for (int i = 1; i <= n; i++) {
            for (int j = 1; j <= m; j++)
                cout << c[i][j];
            cout << '\n';
        }
    }
}
int32_t main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr); cout.tie(nullptr);
    
    int t = 1;
    cin >> t;
    while (t--) {
        solve();
    }
    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