Submission #124186

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
124186	2019-07-02 15:28:09	mechfrog88	Safety (NOI18_safety)	C++14	100 / 100	284 ms	21128 KiB

safety

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#include <iostream>
#include <algorithm>
#include <set>
#include <functional>
using namespace std;
multiset<long long,greater<long long>> lefts;
multiset<long long,less<long long>> rights;
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n,h;
    cin>>n>>h;
    {
        int x;
        cin>>x;
        lefts.insert(x);
        rights.insert(x);
    }
    long long minval=0;
    for(int i=1;i<n;++i){
        int x;
        cin>>x;
        long long shift=static_cast<long long>(i)*h;
        auto leftborder=lefts.begin();
        long long leftborderval=*leftborder-shift;
        auto rightborder=rights.begin();
        long long rightborderval=*rightborder+shift;
        if(x<leftborderval){
            auto hint=lefts.insert(x+shift);
            lefts.insert(hint,x+shift);
 
 
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