제출 #138813

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
138813	2019-07-30 11:08:07	Boxworld	Mecho (IOI09_mecho)	C++14	100 / 100	247 ms	9976 KiB

mecho

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#include <bits/stdc++.h>
using namespace std;
const int N=1010;
typedef pair<int,int> pii;
char G[N][N];
int dx[4]={1,-1,0,0},dy[4]={0,0,1,-1};
int T[N][N],d[N][N],vis[N][N];
int n,s,sx,sy;
int bfs(int time){
  if (time*s>=T[sx][sy])return 0;
  memset(vis,0,sizeof(vis));
  queue<pii> Q;
  vis[sx][sy]=1;
  Q.push(make_pair(sx*N+sy,time*s));
  while(!Q.empty()){
    int dis=Q.front().second;
    int x=Q.front().first/N;
    int y=Q.front().first%N;
    Q.pop();
    if (G[x][y]=='D')return 1;
    for (int k=0;k<4;k++){
      int X=x+dx[k],Y=y+dy[k];
      if (X<1||X>n||Y<1||Y>n||G[X][Y]=='T'||dis+1>=T[X][Y]||vis[X][Y])continue;
      vis[X][Y]=1;
      Q.push(make_pair(X*N+Y,dis+1));
    }
  }
  return 0;
}
int main(){
 
 
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컴파일 시 표준 에러 (stderr) 메시지

mecho.cpp: In function 'int main()':
mecho.cpp:31:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&s);
  ~~~~~^~~~~~~~~~~~~~
mecho.cpp:32:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for (int i=1;i<=n;i++)scanf("%s",G[i]+1);
                        ~~~~~^~~~~~~~~~~~~

• Subtask 1: 100 / 100