제출 #644638

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
644638	2022-09-25 04:57:19	guagua0407	Toll (BOI17_toll)	C++17	100 / 100	235 ms	99280 KiB

toll

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#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define F first
#define S second
#define all(x) x.begin(),x.end()
#define _ ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
void setIO(string s) {
  freopen((s + ".in").c_str(), "r", stdin);
  freopen((s + ".out").c_str(), "w", stdout);
}
int k,n,m,o;
const int mxn=5e4+4;
int dp[mxn][20][5][5];
int ans[5][5];
int tmp[5][5];
void ckmin(int a[5][5],int b[5][5],int c[5][5]){
  for(int x=0;x<5;x++){
    for(int y=0;y<5;y++){
      for(int z=0;z<5;z++){
        a[x][z]=min(a[x][z],b[x][y]+c[y][z]);
      }
    }
  }
}
int main() {_
 
 
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컴파일 시 표준 에러 (stderr) 메시지

toll.cpp: In function 'int main()':
toll.cpp:41:40: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   41 |    ckmin(dp[i][j],dp[i][j-1],dp[i+(1<<j-1)][j-1]);
      |                                       ~^~
toll.cpp:47:7: warning: unused variable 'node' [-Wunused-variable]
   47 |   int node=a/k;
      |       ^~~~
toll.cpp:48:7: warning: unused variable 'length' [-Wunused-variable]
   48 |   int length=(b/k)-(a/k);
      |       ^~~~~~
toll.cpp: In function 'void setIO(std::string)':
toll.cpp:10:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |  freopen((s + ".in").c_str(), "r", stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
toll.cpp:11:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |  freopen((s + ".out").c_str(), "w", stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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