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Submission #243437

# Submission time Handle Problem Language Result Execution time Memory
243437 2020-07-01T06:53:45 Z VEGAnn Pohlepko (COCI16_pohlepko) C++14
80 / 80
 82 ms 8184 KB 
#include <bits/stdc++.h>
#define all(x) x.begin(),x.end()
#define sz(x) ((int)x.size())
#define i2 array<int,2>
#define PB push_back
using namespace std;
const int N = 2010;
const int oo = 2e9;
vector<i2> vc, nw;
char c[N][N];
int n, m;
string s = "";

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);

#ifdef _LOCAL
    freopen("in.txt","r",stdin);
#endif // _LOCAL

    cin >> n >> m;

    for (int i = 0; i < n; i++)
    for (int j = 0; j < m; j++)
        cin >> c[i][j];

    vc.PB({0, 0});

    while (sz(vc) > 0){
        char mn = 'z';

        nw.clear();

        for (i2 cr : vc)
            mn = min(mn, c[cr[0]][cr[1]]);

        for (i2 cr : vc){
            int x = cr[0], y = cr[1];

            if (c[x][y] != mn) continue;

            if (x < n - 1)
                nw.PB({x + 1, y});
            if (y < m - 1)
                nw.PB({x, y + 1});
        }

        s += mn;

        sort(all(nw));
        nw.resize(unique(all(nw)) - nw.begin());

        vc = nw;
    }

    cout << s;

    return 0;
}

Subtask #1
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 1280 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 512 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 8 ms 1280 KB Output is correct
7 Correct 33 ms 4344 KB Output is correct
8 Correct 62 ms 8184 KB Output is correct
9 Correct 5 ms 512 KB Output is correct
10 Correct 6 ms 768 KB Output is correct
11 Correct 6 ms 640 KB Output is correct
12 Correct 10 ms 2688 KB Output is correct
13 Correct 11 ms 4480 KB Output is correct
14 Correct 61 ms 8184 KB Output is correct
15 Correct 6 ms 640 KB Output is correct
16 Correct 82 ms 4864 KB Output is correct