제출 #589307

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
589307		MohamedFaresNebili	Bitaro the Brave (JOI19_ho_t1)	C++14	0 / 100	1 ms	340 KiB

joi2019_ho_t1

#include <bits/stdc++.h>
/// #pragma GCC optimize ("Ofast")
/// #pragma GCC target ("avx2")
/// #pragma GCC optimize("unroll-loops")

                using namespace std;

                using ll = long long;
                using ld = long double;
                using ii = pair<ll, ll>;
                using vi = vector<int>;

                #define ff first
                #define ss second
                #define pb push_back
                #define all(x) (x).begin(), (x).end()
                #define lb lower_bound
                #define int ll
                #define double ld

                const int MOD = 1000 * 1000 * 1000 + 7;
                const double EPS = 1e-9;

                int H, W, A[3001], B[3001];
                char grid[3001][3001];

                int32_t main() {
                    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
                    cin >> H >> W;
                    for(int l = 0; l < H; l++)
                        for(int i = 0; i < W; i++)
                            cin >> grid[l][i];
                    int res = 0;
                    for(int l = 0; l < H; l++)
                        for(int i = 0; i < W; i++) {
                            if(grid[l][i] == 'O') A[l]++;
                            if(grid[l][i] == 'I') B[i]++;
                        }
                    for(int l = 0; l < H; l++)
                        for(int i = 0; i < W; i++)
                            if(grid[l][i] == 'J')
                                res += A[i] * B[l];
                    cout << res << "\n";
                    return 0;
                }

• Subtask 1: 0 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50