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Submission #1074092

# Submission time Handle Problem Language Result Execution time Memory
1074092 2024-08-25T07:52:31 Z mindiyak Wombats (IOI13_wombats) C++17
12 / 100
 20000 ms 32860 KB 
#include "wombats.h"
#include <vector>
#include <iostream>
#include <queue>

typedef long long ll;
#define F first
#define S second

using namespace std;

int H[5000][200];
int V[5000][200];
int R,C; 
int sum = 0;
int dp[5000][5000];

void calc2(int V1){
    priority_queue<pair<int,pair<int,int>>> pq;

    pq.push({0,{0,V1}});
    int dis[R+5][C+5];
    int vis[R+5][C+5];

    for(int i=0;i<R+5;i++)for(int j=0;j<C+5;j++)dis[i][j] = 2e9;
    for(int i=0;i<R+5;i++)for(int j=0;j<C+5;j++)vis[i][j] = 0;

    dis[0][V1] = 0;

    while(!pq.empty()){
        int y = pq.top().S.F;
        int x = pq.top().S.S;
        pq.pop();

        if(vis[y][x])continue;
        vis[y][x] = 1;

        if(x > 0 && (dis[y][x] + H[y][x-1] < dis[y][x-1])){
            // cerr << x << "," << y << " " << dis[y][x] << " " << H[y][x-1] << " L\n";
            dis[y][x-1] = dis[y][x] + H[y][x-1];
            pq.push({-dis[y][x-1],{y,x-1}});
        }

        if(x < (C-1) && (dis[y][x] + H[y][x] < dis[y][x+1])){
            // cerr << x << "," << y << " " << dis[y][x] << " " << H[y][x] << " R\n";
            dis[y][x+1] = dis[y][x] + H[y][x];
            pq.push({-dis[y][x+1],{y,x+1}});
        }

        if(y < (R-1) && (dis[y][x] + V[y][x] < dis[y+1][x])){
            // cerr << x << "," << y << " " << dis[y][x] << " " << V[y][x] << " D\n";
            dis[y+1][x] = dis[y][x] + V[y][x];
            pq.push({-dis[y+1][x],{y+1,x}});
        }
    }

    // for(int i=0;i<R;i++){
    //     for(int j=0;j<C;j++){
    //         cerr << dis[i][j] << " ";
    //     }cerr << endl;
    // }cerr << endl;

    for(int i=0;i<R+5;i++)dp[V1][i] = dis[R-1][i];
}

void init(int r, int c, int h[5000][200], int v[5000][200]) {
    R = r;
    C = c;
    for(int i=0;i<5000;i++)for(int j=0;j<200;j++)H[i][j] = h[i][j];
    for(int i=0;i<5000;i++)for(int j=0;j<200;j++)V[i][j] = v[i][j];
    for(int i=0;i<5000;i++)for(int j=0;j<200;j++)sum += V[i][j];

    for(int i=0;i<R+5;i++)calc2(i);
}

void changeH(int P, int Q, int W) {
    H[P][Q] = W;
    for(int i=0;i<R+5;i++)calc2(i);
}

void changeV(int P, int Q, int W) {
    sum -= V[P][Q];
    sum += W;
    V[P][Q] = W;
    for(int i=0;i<R+5;i++)calc2(i);
}

int escape(int V1, int V2) {
    if(C == 1){
        return sum;
    }
    if(true){
        return dp[V1][V2];
    }
    priority_queue<pair<int,pair<int,int>>> pq;

    pq.push({0,{0,V1}});
    int dis[5005][205];
    int vis[5005][205];

    for(int i=0;i<5005;i++)for(int j=0;j<205;j++)dis[i][j] = 2e9;
    for(int i=0;i<5005;i++)for(int j=0;j<205;j++)vis[i][j] = 0;

    dis[0][V1] = 0;

    while(!pq.empty()){
        int y = pq.top().S.F;
        int x = pq.top().S.S;
        pq.pop();

        if(vis[y][x])continue;
        vis[y][x] = 1;

        if(x > 0 && (dis[y][x] + H[y][x-1] < dis[y][x-1])){
            // cerr << x << "," << y << " " << dis[y][x] << " " << H[y][x-1] << " L\n";
            dis[y][x-1] = dis[y][x] + H[y][x-1];
            pq.push({-dis[y][x-1],{y,x-1}});
        }

        if(x < (C-1) && (dis[y][x] + H[y][x] < dis[y][x+1])){
            // cerr << x << "," << y << " " << dis[y][x] << " " << H[y][x] << " R\n";
            dis[y][x+1] = dis[y][x] + H[y][x];
            pq.push({-dis[y][x+1],{y,x+1}});
        }

        if(y < (R-1) && (dis[y][x] + V[y][x] < dis[y+1][x])){
            // cerr << x << "," << y << " " << dis[y][x] << " " << V[y][x] << " D\n";
            dis[y+1][x] = dis[y][x] + V[y][x];
            pq.push({-dis[y+1][x],{y+1,x}});
        }
    }

    // for(int i=0;i<R;i++){
    //     for(int j=0;j<C;j++){
    //         cerr << dis[i][j] << " ";
    //     }cerr << endl;
    // }cerr << endl;

    return dis[R-1][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
0 / 9.0

# Verdict Execution time Memory Grader output
1 Runtime error 16 ms 24664 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8284 KB Output is correct
2 Correct 4 ms 8284 KB Output is correct
3 Correct 5 ms 8284 KB Output is correct
4 Correct 5 ms 8284 KB Output is correct
5 Correct 5 ms 8284 KB Output is correct
6 Correct 5 ms 8284 KB Output is correct
7 Correct 5 ms 8284 KB Output is correct
8 Correct 6 ms 8284 KB Output is correct
9 Correct 5 ms 8284 KB Output is correct
10 Correct 9 ms 8284 KB Output is correct
11 Correct 55 ms 10596 KB Output is correct
12 Correct 5 ms 8284 KB Output is correct

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 10268 ms 8980 KB Output is correct
2 Correct 16170 ms 9200 KB Output is correct
3 Correct 10208 ms 9068 KB Output is correct
4 Correct 10270 ms 9072 KB Output is correct
5 Correct 10166 ms 9048 KB Output is correct
6 Correct 6 ms 8284 KB Output is correct
7 Correct 4 ms 8304 KB Output is correct
8 Correct 4 ms 8280 KB Output is correct
9 Execution timed out 20092 ms 9044 KB Time limit exceeded
10 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Runtime error 22 ms 32856 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 10028 ms 9060 KB Output is correct
2 Correct 16192 ms 9196 KB Output is correct
3 Correct 10155 ms 8924 KB Output is correct
4 Correct 10109 ms 9044 KB Output is correct
5 Correct 10208 ms 9064 KB Output is correct
6 Runtime error 24 ms 32860 KB Execution killed with signal 11
7 Halted 0 ms 0 KB -

Subtask #6
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 10116 ms 9056 KB Output is correct
2 Correct 16239 ms 9192 KB Output is correct
3 Correct 10245 ms 9068 KB Output is correct
4 Correct 10219 ms 9044 KB Output is correct
5 Correct 10161 ms 9076 KB Output is correct
6 Runtime error 20 ms 32784 KB Execution killed with signal 11
7 Halted 0 ms 0 KB -