Submission #42089

#	Time	Username	Problem	Language	Result	Execution time	Memory
42089		nonocut	Stove (JOI18_stove)	C++14	100 / 100	33 ms	3116 KiB

stove

#include<bits/stdc++.h>
using namespace std;
const int maxn = 1e5 + 5;
int n,k;
int p[maxn];
int main() {
    int i,x,y;
    scanf("%d%d",&n,&k);
    for(i=0;i<n;i++) {
        scanf("%d",&x);
        if(i) p[i] = x-y-1;
        y = x;
    }
    sort(p,p+n);
    int ans = n;
    for(i=0;i<n-k+1;i++) ans += p[i];
    printf("%d",ans);
}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:8:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&n,&k);
                        ^
stove.cpp:10:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&x);
                       ^

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