제출 #66727

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
66727		hamzqq9	Art Exhibition (JOI18_art)	C++14	100 / 100	372 ms	12420 KiB

art

#include<bits/stdc++.h>
#define st first
#define nd second
#define pb push_back
#define ppb pop_back
#define umax(x,y) x=max(x,y)
#define umin(x,y) x=min(x,y)
#define ll long long
#define ii pair<int,int>
#define iii pair<int,ii>
#define sz(x) ((int) x.size())
#define orta ((bas+son)>>1)
#define all(x) x.begin(),x.end()
#define dbgs(x) cerr<<(#x)<<" --> "<<(x)<<" "
#define dbg(x) cerr<<(#x)<<" --> "<<(x)<<endl;getchar()
#define pw(x) (1<<(x))
#define inf 10000000000000000
#define MOD 1000000007
#define N 500005
#define MAX 10000006
#define LOG 22
using namespace std;

int n;
int b[N];
ll pre[N];
ll ans;
pair<ll,int> a[N];	

int main() {

//	freopen("input.txt","r",stdin);

	scanf("%d",&n);

	for(int i=1;i<=n;i++) {

		scanf("%lld %d",&a[i].st,&a[i].nd);

	}

	sort(a+1,a+1+n);

	ll max_val=-inf;

	for(int i=1;i<=n;i++) {

		umax(max_val,-pre[i-1]+a[i].st);

		pre[i]=pre[i-1]+a[i].nd;

		umax(ans,max_val+pre[i]-a[i].st);

	}

	printf("%lld\n",ans);

}

컴파일 시 표준 에러 (stderr) 메시지

art.cpp: In function 'int main()':
art.cpp:34:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
art.cpp:38:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld %d",&a[i].st,&a[i].nd);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 50 / 50