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Submission #289343

# Submission time Handle Problem Language Result Execution time Memory
289343 2020-09-02T15:06:00 Z egekabas Wombats (IOI13_wombats) C++14
100 / 100
 7664 ms 182616 KB 
#include "wombats.h"
#include <bits/stdc++.h>
#define all(x) (x).begin(), (x).end()
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<ll, ll> pll;
typedef pair<ull, ull> pull;
typedef pair<int, int> pii;
typedef pair<ld, ld> pld;
int r, c;
const int sq = 15;
int h[5000][200];
int v[5000][200];
int dis[5000/sq+5][200][200];
    
void dijkstra1(int beg, int end, int imp, int dis[200]){
    for(int j = 0; j < c; ++j)
        dis[j] = 1e9+7;
    dis[imp] = 0;
    for(int i = end; i >= beg; --i){
        for(int j = 1; j < c; ++j)
            dis[j] = min(dis[j], dis[j-1]+h[i][j-1]);
        for(int j = c-2; j >= 0; --j)
            dis[j] = min(dis[j], dis[j+1]+h[i][j]);
        for(int j = 0; j < c && i != beg; ++j)
            dis[j] = min((int)1e9+7, dis[j] + v[i-1][j]);
    }
}
int cnt;
int segdis[(5000/sq)*4+5][200][200];
int opt[200][200];
void calc(int v, int tl, int tr, int idx){
    if(tl == tr){
        for(int i = 0; i < c; ++i)
            for(int j = 0; j < c; ++j){
                segdis[v][i][j] = dis[tl][j][i];
            }
        return;
    }
    int tm = (tl+tr)/2;
    if(idx <= tm || idx == -1)
        calc(2*v, tl, tm, idx);
    if(idx > tm || idx == -1)
        calc(2*v+1, tm+1, tr, idx);
    for(int i = c-1; i >= 0; --i)
        for(int j = 0; j < c; ++j){
            int beg = 0, en = c-1;
            if(i+1 < c)
                en = opt[i+1][j];
            if(j > 0)
                beg = opt[i][j-1];
            
            pii mini = {1e9+7, 1e9+7};
            for(int k = beg; k <= en; ++k)
                mini = min(mini, {segdis[2*v][i][k]+segdis[2*v+1][k][j], k});
            segdis[v][i][j] = mini.ff;
            opt[i][j] = mini.ss;
        }    
}
    
void init(int R, int C, int H[5000][200], int V[5000][200]) {
    r = R;
    c = C;
    for(int i = 0; i < r; i += sq)
        cnt = max(cnt, i/sq);
    for(int i = 0; i < r; ++i)
        for(int j = 0; j < c; ++j){
            h[i][j] = H[i][j];
            v[i][j] = V[i][j];
        }
    for(int i = 0; i < r; i += sq)
        for(int j = 0; j < c; ++j)
            dijkstra1(i, min(i+sq, r-1), j, dis[i/sq][j]);
    calc(1, 0, cnt, -1);
}
vector<int> change;
void changeH(int P, int Q, int W) {
    h[P][Q] = W;
    int gr = P/sq;
    change.pb(gr);
    if(gr > 0 && P%sq == 0){
        change.pb(gr-1);
    }
}
    
void changeV(int P, int Q, int W) {
    v[P][Q] = W;
    int gr = P/sq;
    change.pb(gr);
}
int curd[200];
int newd[200];
int done[sq+5];
int changed[200];
int escape(int V1, int V2) {
    for(auto u : change){
        if(done[u]) continue;
        for(int j = 0; j < c; ++j)
            dijkstra1(u*sq, min(r-1, (u+1)*sq), j, dis[u][j]);
        calc(1, 0, cnt, u);
    }
    
    for(auto u : change)
        done[u] = 0;
    change.clear();
    return segdis[1][V1][V2];
}

Compilation message

grader.c: In function 'int main()':
grader.c:15:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
   15 |  int res;
      |      ^~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 16512 KB Output is correct
2 Correct 9 ms 16640 KB Output is correct
3 Correct 95 ms 18040 KB Output is correct
4 Correct 10 ms 16512 KB Output is correct
5 Correct 9 ms 16512 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 512 KB Output is correct
6 Correct 1 ms 512 KB Output is correct
7 Correct 1 ms 512 KB Output is correct
8 Correct 1 ms 512 KB Output is correct
9 Correct 1 ms 512 KB Output is correct
10 Correct 1 ms 512 KB Output is correct
11 Correct 87 ms 1784 KB Output is correct
12 Correct 1 ms 512 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 185 ms 2424 KB Output is correct
2 Correct 186 ms 2552 KB Output is correct
3 Correct 204 ms 2432 KB Output is correct
4 Correct 195 ms 2680 KB Output is correct
5 Correct 195 ms 2556 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 915 ms 2560 KB Output is correct
10 Correct 1 ms 384 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 21120 KB Output is correct
2 Correct 13 ms 21248 KB Output is correct
3 Correct 13 ms 21248 KB Output is correct
4 Correct 56 ms 22136 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 186 ms 2552 KB Output is correct
2 Correct 187 ms 2552 KB Output is correct
3 Correct 203 ms 2432 KB Output is correct
4 Correct 195 ms 2476 KB Output is correct
5 Correct 197 ms 2432 KB Output is correct
6 Correct 14 ms 21248 KB Output is correct
7 Correct 12 ms 21248 KB Output is correct
8 Correct 13 ms 21248 KB Output is correct
9 Correct 57 ms 22136 KB Output is correct
10 Correct 10 ms 16512 KB Output is correct
11 Correct 10 ms 16512 KB Output is correct
12 Correct 92 ms 18300 KB Output is correct
13 Correct 10 ms 16512 KB Output is correct
14 Correct 11 ms 16512 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 1 ms 512 KB Output is correct
19 Correct 1 ms 512 KB Output is correct
20 Correct 1 ms 512 KB Output is correct
21 Correct 1 ms 512 KB Output is correct
22 Correct 1 ms 512 KB Output is correct
23 Correct 1 ms 512 KB Output is correct
24 Correct 1 ms 512 KB Output is correct
25 Correct 87 ms 1784 KB Output is correct
26 Correct 1 ms 512 KB Output is correct
27 Correct 913 ms 2552 KB Output is correct
28 Correct 1917 ms 99064 KB Output is correct
29 Correct 1853 ms 81144 KB Output is correct
30 Correct 1873 ms 81404 KB Output is correct
31 Correct 1971 ms 99704 KB Output is correct
32 Correct 0 ms 384 KB Output is correct

Subtask #6
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 188 ms 2544 KB Output is correct
2 Correct 187 ms 2304 KB Output is correct
3 Correct 204 ms 2424 KB Output is correct
4 Correct 193 ms 2424 KB Output is correct
5 Correct 192 ms 2304 KB Output is correct
6 Correct 13 ms 21248 KB Output is correct
7 Correct 12 ms 21120 KB Output is correct
8 Correct 13 ms 21120 KB Output is correct
9 Correct 55 ms 22064 KB Output is correct
10 Correct 10 ms 16512 KB Output is correct
11 Correct 10 ms 16512 KB Output is correct
12 Correct 96 ms 18040 KB Output is correct
13 Correct 10 ms 16512 KB Output is correct
14 Correct 10 ms 16512 KB Output is correct
15 Correct 2492 ms 173288 KB Output is correct
16 Correct 7664 ms 176140 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 512 KB Output is correct
21 Correct 1 ms 512 KB Output is correct
22 Correct 1 ms 512 KB Output is correct
23 Correct 1 ms 512 KB Output is correct
24 Correct 1 ms 512 KB Output is correct
25 Correct 1 ms 512 KB Output is correct
26 Correct 1 ms 512 KB Output is correct
27 Correct 93 ms 2936 KB Output is correct
28 Correct 1 ms 512 KB Output is correct
29 Correct 960 ms 2504 KB Output is correct
30 Correct 2043 ms 102544 KB Output is correct
31 Correct 7596 ms 181756 KB Output is correct
32 Correct 7370 ms 182000 KB Output is correct
33 Correct 1831 ms 84392 KB Output is correct
34 Correct 7263 ms 149452 KB Output is correct
35 Correct 1867 ms 84488 KB Output is correct
36 Correct 7257 ms 149972 KB Output is correct
37 Correct 1973 ms 104140 KB Output is correct
38 Correct 7208 ms 182616 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 7285 ms 150156 KB Output is correct