Submission #153340

#	Time	Username	Problem	Language	Result	Execution time	Memory
153340		mhy908	Stove (JOI18_stove)	C++14	100 / 100	29 ms	2936 KiB

stove

#include <bits/stdc++.h>
using namespace std;
typedef long long LL;
int n, k;
LL t[100010], arr[100010], ans;
int main()
{
    scanf("%d %d", &n, &k);
    for(int i=1; i<=n; i++)scanf("%lld", &t[i]);
    for(int i=2; i<=n; i++)arr[i-1]=t[i]-t[i-1]-1;
    sort(arr+1, arr+n, greater<LL>());
    ans=t[n]-t[1]+1;
    for(int i=1; i<=k-1; i++)ans-=arr[i];
    printf("%lld", 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]
     scanf("%d %d", &n, &k);
     ~~~~~^~~~~~~~~~~~~~~~~
stove.cpp:9:33: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(int i=1; i<=n; i++)scanf("%lld", &t[i]);
                            ~~~~~^~~~~~~~~~~~~~~

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