Submission #204689

#	Time	Username	Problem	Language	Result	Execution time	Memory
204689		my99n	Stove (JOI18_stove)	C++14	100 / 100	38 ms	2292 KiB

stove

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

int t[100100];
priority_queue<int> heap;
long long sum;

int main(){
    int n, k;
    scanf("%d %d", &n, &k); k--;
    for (int i = 0; i < n; i++) scanf("%d", &t[i]);
    for (int i = 1; i < n; i++) heap.push(t[i]-t[i-1]-1);
    sum = t[n-1] - t[0] + 1;
    while (k--) sum -= heap.top(), heap.pop();
    printf("%lld", sum);
    return 0;
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:10:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &k); k--;
     ~~~~~^~~~~~~~~~~~~~~~~
stove.cpp:11:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for (int i = 0; i < n; i++) scanf("%d", &t[i]);
                                 ~~~~~^~~~~~~~~~~~~

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