제출 #95923

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
95923	2019-02-04 11:16:06	oolimry	Safety (NOI18_safety)	C++14	100 / 100	70 ms	5180 KiB

safety

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#include <bits/stdc++.h>
using namespace std;
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    long long n, h;
    cin >> n >> h;
    long long arr[n];
    for(int i = 0;i < n;i++)
        cin >> arr[i];
    priority_queue<long long> left;
    priority_queue<long long, vector<long long>, greater<long long> > right;
    left.push(arr[0]);
    right.push(arr[0]);
    int prel = arr[0];
    int prer = arr[0];
    long long acc = 0;
    for(int i = 1;i < n;i++){
        long long shift = i * h;
        long long l = left.top() - shift;
        long long r = right.top() + shift;
        long long x = arr[i];
        if(x >= r){
            right.push(x - shift);
            right.push(x - shift);
            left.push(right.top() + 2 * shift);
            right.pop();
            acc += abs(x - (left.top() - shift));
        }
 
 
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컴파일 시 표준 에러 (stderr) 메시지

safety.cpp: In function 'int main()':
safety.cpp:16:9: warning: variable 'prel' set but not used [-Wunused-but-set-variable]
     int prel = arr[0];
         ^~~~
safety.cpp:17:9: warning: variable 'prer' set but not used [-Wunused-but-set-variable]
     int prer = arr[0];
         ^~~~

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