Submission #290703

#	Time	Username	Problem	Language	Result	Execution time	Memory
290703		Atill83	Wombats (IOI13_wombats)	C++14	55 / 100	20087 ms	22088 KiB

wombats

#include "wombats.h"
#include <bits/stdc++.h>
using namespace std;
long long dp[205][2][205];
int h[5000][200], v[5000][200];
int r, c;
void clc(){
    memset(dp, 0x7f, sizeof(dp));
    for(int i = 0; i < c; i++){
        dp[i][0][i] = 0;
        int bas = 1;
        for(int j = 0; j < r; j++){
            if(!bas){
                for(int k = 0; k < c; k++){
                    dp[i][j&1][k] = dp[i][j&1^1][k] + v[j - 1][k];
                }
            }
            bas = 0;

            for(int k = 1; k < c; k++){
                dp[i][j&1][k] = min(dp[i][j&1][k], dp[i][j&1][k - 1] + h[j][k - 1]);
            }
            for(int k = c - 2; k >= 0; k--){
                dp[i][j&1][k] = min(dp[i][j&1][k], dp[i][j&1][k + 1] + h[j][k]);
            }
        }
    }


}


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++){
        for(int j = 0; j < C; j++){
            if(i != R - 1) v[i][j] = V[i][j];
            if(j != C - 1) h[i][j] = H[i][j];
        }
    }
    clc();
}

void changeH(int P, int Q, int W) {
    h[P][Q] = W;
    clc();
}

void changeV(int P, int Q, int W) {
    v[P][Q] = W;
    clc();
}

int escape(int V1, int V2) {
    return dp[V1][(r - 1)%2][V2];
}

Compilation message (stderr)

grader.c: In function 'int main()':
grader.c:15:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
   15 |  int res;
      |      ^~~
wombats.cpp: In function 'void clc()':
wombats.cpp:15:44: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
   15 |                     dp[i][j&1][k] = dp[i][j&1^1][k] + v[j - 1][k];
      |                                           ~^~

• Subtask 1: 9 / 9
• Subtask 2: 12 / 12
• Subtask 3: 16 / 16
• Subtask 4: 18 / 18
• Subtask 5: 0 / 21
• Subtask 6: 0 / 24