Submission #1305977

#	Time	Username	Problem	Language	Result	Execution time	Memory
1305977		limon4ick	Stove (JOI18_stove)	C++20	100 / 100	13 ms	1212 KiB

stove

/*#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3") 
#pragma GCC optimize("Ofast") 
#pragma GCC target("avx,avx2,fma") 
#pragma GCC optimization("unroll-loops") 
#pragma ("reroll") */
#include <bits/stdc++.h>
using namespace std;
//#define int long long
#define pb push_back
#define ins insert
#define F first
#define S second
const int mod = 1e7 + 7,N = 5010,inf = 1e18;
signed main(){
    //freopen("snnfsn.in","r",stdin)
    //freopen("snnfsn.out","w",stdout)
    std::ios::sync_with_stdio(false);
    cin.tie(0);
    int n,k;
    cin >> n >> k;
    int a[n + 1];
    for(int i = 1;i<=n;i++) cin >> a[i];
    int b[n + 1]{};
    for(int i = 1;i<n;i++){
        b[i] = (a[i + 1]) - a[i] - 1;
    }
    long long ans = n;
    sort(b + 1,b + n);
    for(int i = 1;i<=n-k;i++){
        if(b[i]>0) ans+=b[i];
    }
    cout << ans;
}

Compilation message (stderr)

stove.cpp:13:40: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+18' to '2147483647' [-Woverflow]
   13 | const int mod = 1e7 + 7,N = 5010,inf = 1e18;
      |                                        ^~~~

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