Submission #339677

#	Time	Username	Problem	Language	Result	Execution time	Memory
339677		ijxjdjd	Stove (JOI18_stove)	C++14	100 / 100	50 ms	2032 KiB

stove

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

typedef long long ll;
typedef string str;
typedef double db;
typedef long double ld;

typedef pair<int, int> pi;
typedef  pair<ll, ll> pl;

typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<pi> vpi;


#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define FR(i,a) FOR(i,0,a)
#define ROF(i,a,b) for (int i = (b)-1; i >= (a); --i)
#define RF(i,a) ROF(i,0,a)
#define trav(a,x) for (auto& a: x)

int main() {
    int N, K;
    cin >> N >> K;
    vector<int> split;
    int last;
    cin >> last;
    int first = last;
    FR(i, N-1) {
        int next;
        cin >> next;
        if (next - last > 1) {
            split.push_back(next-(last+1));
        }
        last = next;
    }
    int rem = 0;
    sort(split.begin(), split.end());
    for (int k = 1; k <= min(K-1, int(split.size())); k++) {
        rem += split[split.size()-k];
    }
    cout << (last + 1 - first - rem);
}

• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 50 / 50