Submission #71439

#	Time	Username	Problem	Language	Result	Execution time	Memory
71439		win11905	Stove (JOI18_stove)	C++11	100 / 100	38 ms	10208 KiB

stove

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

int n, k;

int main() {
    scanf("%d %d", &n, &k);
    vector<int> V;
    int pv; scanf("%d", &pv);
    for(int i = 1, a; i < n; ++i) {
        scanf("%d", &a);
        V.emplace_back(a - pv - 1);
        pv = a;
    }
    sort(V.begin(), V.end());
    int v = n-k;
    for(int i = 0; i < v; ++i) n += V[i];
    printf("%d\n", n);
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:7:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &k);
     ~~~~~^~~~~~~~~~~~~~~~~
stove.cpp:9:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     int pv; scanf("%d", &pv);
             ~~~~~^~~~~~~~~~~
stove.cpp:11:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &a);
         ~~~~~^~~~~~~~~~

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