Submission #335636

#	Time	Username	Problem	Language	Result	Execution time	Memory
335636		Joshc	Stove (JOI18_stove)	C++11	100 / 100	25 ms	1768 KiB

stove

#include <cstdio>
#include <vector>
#include <algorithm>
using namespace std;

int main() {
    int n, k, x, y;
    scanf("%d%d", &n, &k);
    vector<int> v;
    for (int i=0; i<n; i++) {
        scanf("%d", &y);
        if (i) v.push_back(y-x-1);
        x = y;
    }
    int ans = n;
    sort(v.begin(), v.end());
    for (int i=0; i<n-k; i++) ans += v[i];
    printf("%d\n", ans);
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:8:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    8 |     scanf("%d%d", &n, &k);
      |     ~~~~~^~~~~~~~~~~~~~~~
stove.cpp:11:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   11 |         scanf("%d", &y);
      |         ~~~~~^~~~~~~~~~

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