Submission #13975

#	Time	Username	Problem	Language	Result	Execution time	Memory
13975		gs14004	정전 (OJUZ10_blackout)	C++14	100 / 100	286 ms	19956 KiB

blackout

#include <cstdio>
#include <map>
using namespace std;

map<long long,int> mp;

int main(){
    int n,l;
    scanf("%d %d",&n,&l);
    for (int i=0; i<n; i++) {
        int t;
        scanf("%d",&t);
        mp[t-l]++;
        mp[t+l]--;
    }
    int hi = 0;
    long long ret = 0;
    auto it = mp.begin();
    for (auto &i : mp){
        hi += i.second;
        it++;
        if(hi > 1 && it != mp.end()) ret += it->first - i.first;
    }
    printf("%lld",ret);
}

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 30 / 30
• Subtask 4: 40 / 40