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Submission #1008612

# Submission time Handle Problem Language Result Execution time Memory
1008612 2024-06-26T15:44:11 Z codexistent Raisins (IOI09_raisins) C++14
100 / 100
 198 ms 72152 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define FOR(i, a, b) for(ll i = a; i <= b; i++)
#define MAXD 55
#define f first
#define s second

ll n, m, r[MAXD][MAXD], dp[MAXD][MAXD][MAXD][MAXD], R = LONG_LONG_MAX;

int main(){
    cin >> n >> m;
    FOR(i, 0, MAXD - 1) FOR(j, 0, MAXD - 1) {
        r[i][j] = 0;
        FOR(i2, 0, MAXD - 1) FOR(j2, 0, MAXD - 1) dp[i][j][i2][j2] = LLONG_MAX;
    }
    FOR(i, 1, n) FOR(j, 1, m) {
        cin >> r[i][j];
        r[i][j] += r[i - 1][j] + r[i][j - 1] - r[i - 1][j - 1];
        dp[i][j][i][j] = 0;
    }
    
    FOR(h, 1, n) FOR(w, 1, m){
        if(h == w && h == 1) continue;
        FOR(bl_h, 1, n - h + 1) FOR(bl_w, 1, m - w + 1) {
            pair<ll, ll> bl = {bl_h, bl_w}, tr = {bl_h + h - 1, bl_w + w - 1};
            ll cr = r[tr.f][tr.s] - r[tr.f][bl.s - 1] - r[bl.f - 1][tr.second] + r[bl.f - 1][bl.s - 1];
            // horizontal cut
            FOR(i, 1, h - 1){
                dp[bl.f][bl.s][tr.f][tr.s] = min(dp[bl.f][bl.s][tr.f][tr.s], cr + dp[bl.f][bl.s][bl.f + i - 1][tr.s] + dp[bl.f + i][bl.s][tr.f][tr.s]);
            }

            // vertical cut
            FOR(i, 1, w - 1){
                dp[bl.f][bl.s][tr.f][tr.s] = min(dp[bl.f][bl.s][tr.f][tr.s], cr + dp[bl.f][bl.s][tr.f][bl.s + i - 1] + dp[bl.f][bl.s + i][tr.f][tr.s]);
            }
            //cout << "{(" << bl.f << ", " << bl.s << "), (" << tr.f << ", " << tr.s << ")} - dp: " << dp[bl.f][bl.s][tr.f][tr.s] << endl; 
        }
    }

    cout << dp[1][1][n][m] << endl;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 72032 KB Output is correct
2 Correct 26 ms 72016 KB Output is correct
3 Correct 25 ms 72028 KB Output is correct
4 Correct 26 ms 72024 KB Output is correct
5 Correct 27 ms 71908 KB Output is correct
6 Correct 39 ms 72016 KB Output is correct
7 Correct 30 ms 71912 KB Output is correct
8 Correct 43 ms 72032 KB Output is correct
9 Correct 29 ms 72020 KB Output is correct
10 Correct 30 ms 71924 KB Output is correct
11 Correct 29 ms 71992 KB Output is correct
12 Correct 38 ms 72028 KB Output is correct
13 Correct 47 ms 72028 KB Output is correct
14 Correct 40 ms 72024 KB Output is correct
15 Correct 60 ms 72068 KB Output is correct
16 Correct 31 ms 72052 KB Output is correct
17 Correct 36 ms 71992 KB Output is correct
18 Correct 102 ms 72020 KB Output is correct
19 Correct 198 ms 72008 KB Output is correct
20 Correct 188 ms 72152 KB Output is correct