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Submission #1074105

# Submission time Handle Problem Language Result Execution time Memory
1074105 2024-08-25T08:00:11 Z mindiyak Wombats (IOI13_wombats) C++17
37 / 100
 9748 ms 33116 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[205][205];
int need = 0;

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 calibrate(){
    if(C==1)return;
    need = 0;
    for(int i=0;i<C+5;i++)calc2(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];

    need = 1;
}

void changeH(int P, int Q, int W) {
    H[P][Q] = W;
    need = 1;
}

void changeV(int P, int Q, int W) {
    sum -= V[P][Q];
    sum += W;
    V[P][Q] = W;
    need = 1;
}

int escape(int V1, int V2) {
    if(C == 1){
        return sum;
    }
    if(true){
        if(need == 1)calibrate();
        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
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 12124 KB Output is correct
2 Correct 7 ms 12216 KB Output is correct
3 Correct 67 ms 14792 KB Output is correct
4 Correct 7 ms 12124 KB Output is correct
5 Correct 10 ms 12124 KB Output is correct
6 Correct 4 ms 8120 KB Output is correct
7 Correct 5 ms 9816 KB Output is correct
8 Correct 5 ms 9820 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 8284 KB Output is correct
2 Correct 5 ms 8260 KB Output is correct
3 Correct 5 ms 9820 KB Output is correct
4 Correct 8 ms 8324 KB Output is correct
5 Correct 6 ms 10332 KB Output is correct
6 Correct 6 ms 8280 KB Output is correct
7 Correct 7 ms 8284 KB Output is correct
8 Correct 7 ms 10332 KB Output is correct
9 Correct 7 ms 10304 KB Output is correct
10 Correct 5 ms 8284 KB Output is correct
11 Correct 46 ms 12652 KB Output is correct
12 Correct 6 ms 8256 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 643 ms 10588 KB Output is correct
2 Correct 9625 ms 10828 KB Output is correct
3 Correct 6341 ms 10644 KB Output is correct
4 Correct 6916 ms 12216 KB Output is correct
5 Correct 6660 ms 12216 KB Output is correct
6 Correct 3 ms 9820 KB Output is correct
7 Correct 4 ms 9820 KB Output is correct
8 Correct 6 ms 9816 KB Output is correct
9 Correct 4245 ms 12280 KB Output is correct
10 Correct 3 ms 11868 KB Output is correct

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Runtime error 20 ms 33028 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 603 ms 12120 KB Output is correct
2 Correct 9443 ms 12532 KB Output is correct
3 Correct 6152 ms 12124 KB Output is correct
4 Correct 6813 ms 12216 KB Output is correct
5 Correct 6461 ms 12120 KB Output is correct
6 Runtime error 16 ms 33116 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 608 ms 12048 KB Output is correct
2 Correct 9748 ms 12352 KB Output is correct
3 Correct 6253 ms 8684 KB Output is correct
4 Correct 6850 ms 8680 KB Output is correct
5 Correct 6492 ms 10648 KB Output is correct
6 Runtime error 20 ms 32860 KB Execution killed with signal 11
7 Halted 0 ms 0 KB -