RE求调

P2895 [USACO08FEB] Meteor Shower S

yuanzhenxiang1117 @ 2024-01-27 19:47:20

#include<bits/stdc++.h>
#define MIN(x,y,t) death[x][y]=min(death[x][y],t)
using namespace std;
int x,y,t;
int T[307][307],death[307][307];
int m,ans=10000;
int walk[4][2]={{0,1},{0,-1},{-1,0},{1,0}};
struct coord{
    int hx,hy;
};
queue<coord> q;
int main(){
    for(int i=0;i<301;i++){
        for(int j=0;j<301;j++){
            T[i][j]=-1;
        }
    }
    for(int i=0;i<301;i++){
        for(int j=0;j<301;j++){
            death[i][j]=99999;
        }
    }
    cin>>m;
    for(int i=1;i<=m;i++){
        cin>>x>>y>>t;
        MIN(x,y,t);
        for(int k=0;k<4;k++){
            MIN(x+walk[k][0],y+walk[k][1],t);
        }
    }
    coord tmp={0,0};
    q.push(tmp);
    T[0][0]=0;
    while(!q.empty()){
        coord u=q.front();
        int ux=u.hx;
        int uy=u.hy;
        q.pop();
        for(int k=0;k<4;k++){
            int x=ux+walk[k][0];
            int y=uy+walk[k][1];
            if(x<0||y<0||T[x][y]!=-1||T[ux][uy]+1>=death[x][y])
            continue;
            T[x][y]=T[ux][uy]+1;
            tmp={x,y};
            q.push(tmp);
        }
    }
        for(int i=0;i<301;i++){
            for(int j=0;j<301;j++){
                if(death[i][j]>1000&&T[i][j]!=-1)
                ans=min(ans,T[i][j]);
            }
        }
        if(ans==10000) cout<<-1;
        else cout<<ans;
    return 0;
}

by WindowsWKP @ 2024-01-28 07:03:30

O2


by yuanzhenxiang1117 @ 2024-01-28 08:26:06

@WindowsWKP 为啥不关O2会RE


by liuchengle2023 @ 2024-01-29 15:00:47

@yuanzhenxiang1117 O2这个东西,随性的嘞


by yuanzhenxiang1117 @ 2024-01-29 18:35:34

@liuchengle2023 可是我在另一个平台上评测时没有O2开关然后就全部运行错误了


|