Submission #736342

#	Time	Username	Problem	Language	Result	Execution time	Memory
736342		oyber	Stove (JOI18_stove)	C++14	100 / 100	24 ms	1884 KiB

stove

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

int main() {
    int n, k;
    scanf("%d %d", &n, &k);

    vector<int> diffs;
    int before = 0;
    int first = 0;
    for (int i = 0; i < n; i++) {
        int t;
        scanf("%d", &t);

        if (i != 0) {
            int diff = t-before-1;
            diffs.push_back(-diff);
        } else {
            first = t;
        }
        before = t;
    }

    sort(diffs.begin(), diffs.end());

    int wait = before-first+1;
    for (int i = 0; i < k-1; i++) {
        wait += diffs[i];
    }
    printf("%d\n", wait);
}

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:15:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |         scanf("%d", &t);
      |         ~~~~~^~~~~~~~~~

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