제출 #1151050

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1151050		nguyn	Just Long Neckties (JOI20_ho_t1)	C++20	100 / 100	59 ms	6984 KiB

ho_t1

#include <bits/stdc++.h>
using namespace std;

#define ll long long 
#define F first
#define S second
#define pb push_back 
#define pii pair<int,int>

const int N = 2e5 + 5;

int n;
pii a[N]; 
int b[N]; 
int pre[N], suf[N]; 
int res[N]; 


signed main(){
    ios_base::sync_with_stdio(false) ; 
    cin.tie(0) ; cout.tie(0) ; 
    if (fopen("INP.INP" ,"r")) {
        freopen("INP.INP" ,"r" , stdin) ;
        freopen("OUT.OUT" , "w" , stdout) ;
    }
    cin >> n;
    for (int i = 1; i <= n + 1; i++) {
    	cin >> a[i].F;
    	a[i].S = i; 
    }
    for (int i = 1; i <= n; i++) {	
    	cin >> b[i]; 	
    }
    sort(a + 1, a + 2 + n);
    sort(b + 1, b + 1 + n); 
    for (int i = 1; i <= n; i++) {
    	pre[i] = max(pre[i - 1], a[i].F - b[i]); 
    }
    for (int i = n; i >= 1; i--) {
    	suf[i] = max(suf[i + 1], a[i + 1].F - b[i]); 
    }
    for (int i = 1; i <= n + 1; i++) {
    	res[a[i].S] = max(pre[i - 1], suf[i]); 
    }
    for (int i = 1; i <= n + 1; i++) {
    	cout << res[i] << ' ';
    }
}

컴파일 시 표준 에러 (stderr) 메시지

ho_t1.cpp: In function 'int main()':
ho_t1.cpp:23:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |         freopen("INP.INP" ,"r" , stdin) ;
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
ho_t1.cpp:24:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |         freopen("OUT.OUT" , "w" , stdout) ;
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 1 / 1
• Subtask 2: 8 / 8
• Subtask 3: 91 / 91