제출 #784278

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
784278		Lyrically	도시들 (IOI15_towns)	C++17	0 / 100	14 ms	956 KiB

towns

#include<bits/stdc++.h>
#include "towns.h"
using namespace std;
#define pii pair<int,int>
#define pb push_back
#define rep(i,n) for(int i=0;i<n;i++)
#define rep1(i,n) for(int i=1;i<=n;i++)
int read(){int x;scanf("%d",&x);return x;}
void print(int x){printf("%d\n",x);}
void file(string s)
{
	freopen((s+".in").c_str(),"r",stdin);
	freopen((s+".out").c_str(),"w",stdout);
}
const int mod=998244353;
int hubDistance(int n,int subtsk)
{
	if(subtsk==1)
	{
		map<int,int> vis;
		rep1(i,n)
		{
			for(int j=i+1;j<=n;j++)
			{
				int d=getDistance(i,j);
				vis[d]++;
			}
		}
		int mx=0,freq=0;
		for(auto v:vis)
		{
			if(v.second>freq){mx=v.first,freq=v.second;}
			else if(v.second==freq)
			{
				mx=min(mx,v.first);
			}
		}
		return mx;
	}
	return 0;
	throw("hamood?hamood!");
}

컴파일 시 표준 에러 (stderr) 메시지

towns.cpp: In function 'int read()':
towns.cpp:8:23: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 | int read(){int x;scanf("%d",&x);return x;}
      |                  ~~~~~^~~~~~~~~
towns.cpp: In function 'void file(std::string)':
towns.cpp:12:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |  freopen((s+".in").c_str(),"r",stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
towns.cpp:13:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |  freopen((s+".out").c_str(),"w",stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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