Submission #894321

#	Time	Username	Problem	Language	Result	Execution time	Memory
894321		Gray	Red-blue table (IZhO19_stones)	C++17	27 / 100	20 ms	1372 KiB

stones

#include<bits/stdc++.h>
#define ll long long
#define ff first
#define ss second
#define ln "\n"
const ll INF = 2e18;
const ll MOD = 1e9+7;
using namespace std;

void solve(){
    ll x, y; cin >> x >> y;
    if (x>y){
        ll fr = y/2+1;
        cout << x+y-fr << ln;
        // ll fc = x-x/2;
        for (ll rc=0; rc<x; rc++){
            for (ll i=0; i<fr; i++){
                cout << '+';
            }
            for (ll i=fr; i<y; i++){
                cout << '-';
            }
            cout << ln;
        }
    }else{
        ll fc = x/2+1;
        cout << y+x-fc << ln;
        for (ll rc=0; rc<fc; rc++){
            for (ll i=0; i<y; i++){
                cout << '-';
            }
            cout << ln;
        }
        for (ll rc=fc; rc<x; rc++){
            for (ll i=0; i<y; i++){
                cout << '+';
            }
            cout << ln;
        }
    }
}

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    ll t=1;
    cin >> t;
    while (t--) solve();
}

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