제출 #298751

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
298751		Hemimor	Pairs (IOI07_pairs)	C++14	30 / 100	30 ms	1664 KiB

pairs

#include <algorithm>
#include <iostream>
#include <iomanip>
#include <numeric>
#include <cassert>
#include <vector>
#include <cmath>
#include <queue>
#include <set>
#include <map>
#define syosu(x) fixed<<setprecision(x)
using namespace std;
typedef long long ll;
typedef unsigned int uint;
typedef unsigned long long ull;
typedef pair<int,int> P;
typedef pair<double,double> pdd;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<double> vd;
typedef vector<vd> vvd;
typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef vector<string> vs;
typedef vector<P> vp;
typedef vector<vp> vvp;
typedef vector<pll> vpll;
typedef pair<P,int> pip;
typedef vector<pip> vip;
const int inf=1<<30;
const ll INF=1ll<<60;
const double pi=acos(-1);
const double eps=1e-8;
const ll mod=1e9+7;
const int dx[4]={-1,0,1,0},dy[4]={0,-1,0,1};

int tp,n,d,M;
ll res=0;

int main(){
	scanf("%d%d%d%d",&tp,&n,&d,&M);
	if(tp==1){
		vi a(n);
		for(int i=0;i<n;i++) scanf("%d",&a[i]);
		sort(a.begin(),a.end());
		int I=0;
		for(int i=0;i<n;i++){
			while(a[i]-a[I]>d) I++;
			res+=i-I;
		}
	}
	if(tp==2){
		assert(0);
	}
	if(tp==3){
		assert(0);
	}
	printf("%lld\n",res);
}

컴파일 시 표준 에러 (stderr) 메시지

pairs.cpp: In function 'int main()':
pairs.cpp:42:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   42 |  scanf("%d%d%d%d",&tp,&n,&d,&M);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
pairs.cpp:45:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   45 |   for(int i=0;i<n;i++) scanf("%d",&a[i]);
      |                        ~~~~~^~~~~~~~~~~~

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