제출 #198999

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
198999		TadijaSebez	Swap (BOI16_swap)	C++11	0 / 100	5 ms	256 KiB

swap

#include <bits/stdc++.h>
using namespace std;
#define mp make_pair
const int inf=1e9+7;
pair<int,int> min(pair<int,int> a,pair<int,int> b){return a<b?a:b;}
int main(){
	int n;
	scanf("%i",&n);
	vector<int> a(n*2+5,inf),ans(n+1);
	for(int i=1;i<=n;i++)scanf("%i",&a[i]);
	for(int i=1;i<=n;i++){
		pair<int,int> mn=min(mp(a[i<<1],i<<1),mp(a[i<<1|1],i<<1|1));
		int j=i;
		while(j){
			mn=min(mn,mp(a[j],j));
			if(j&1)mn=min(mn,mp(a[j^1],j^1));
			j/=2;
		}
		ans[i]=mn.first;
		a[mn.second]=inf;
		printf("%i ",ans[i]);
	}
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

swap.cpp: In function 'int main()':
swap.cpp:8:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%i",&n);
  ~~~~~^~~~~~~~~
swap.cpp:10:28: 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("%i",&a[i]);
                       ~~~~~^~~~~~~~~~~~

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