Submission #812669

#	Time	Username	Problem	Language	Result	Execution time	Memory
812669		ma_moutahid	Wombats (IOI13_wombats)	C++17	0 / 100	15 ms	18544 KiB

wombats

#include <bits/stdc++.h>
#include "wombats.h"
using ll =long long;
//#define int ll
ll LINF=1000000000000000000;
int INF=1000000000;
#define pi pair<int,int>
#define pl pair<ll,ll>
#define endl '\n'
#define vi vector<int>
#define vii vector<vector<int>>
#define vl vector<ll>
#define vll vector<vector<ll>>
using namespace std;

vii h;
vii v;
int r,c;
vector<vii>dp;

void update(){
    for(int end=0;end<c;end++){
        auto &DP=dp[end];
        int x=0;
        for(int i=end;i<c-1;i++){
            x+=h[r-1][i];
            DP[r-1][i+1]=x;
        }
        x=0;
        for(int i=end-1;i>=0;i--){
            x+=h[r-1][i];
            DP[r-1][i]+=x;
        }
        for(int i=r-2;i;i--){
            for(int j=0;j<c;j++){
                DP[i][j]=DP[i+1][j]+v[i][j];
            }
            for(int j=1;j<c;j++){
                DP[i][j]=min(DP[i][j],DP[i-1][j]+h[i-1][j]);
            }
            for(int j=c-2;j;j++){
                DP[i][j]=min(DP[i][j],DP[i+1][j]+h[i][j]);
            }
        }
    }
}

void init(int R,int C,int H[5000][200],int V[5000][200]){
    r=R;c=C;
    h.resize(R,vi(C-1));
    v.resize(C,vi(R-1));
    for(int i=0;i<R;i++){
        for(int j=0;j<C-1;j++)h[i][j]=H[i][j];
    }
    for(int i=0;i<C;i++)for(int j=0;j<R-1;j++)v[i][j]=V[i][j];
    dp.resize(C,vii(R,vi(C)));
}

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

void changeH(int P, int Q, int W){
    h[P][Q]=W;
    update();
}
int escape(int x,int y){
    return dp[y][0][x];
}

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;
      |      ^~~

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