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Submission #108776

# Submission time Handle Problem Language Result Execution time Memory
108776 2019-05-01T22:11:12 Z thebes Stove (JOI18_stove) C++14
100 / 100
 36 ms 2168 KB 
#include <bits/stdc++.h>
using namespace std;

const int MN = 1e5+5;
typedef long long ll;
ll arr[MN], n, i, x, y, k, ans, r;

int main(){
    scanf("%lld%lld%lld",&n,&k,&x);
    r = k; k = max(0LL, n-k);
    for(i=2;i<=n;i++){
        scanf("%lld",&y);
        arr[i-1]=y-x; x=y;
    }
    sort(arr+1,arr+n,[](ll i,ll j){return i<j;});
    for(i=1;i<=k;i++) ans += arr[i];
    printf("%lld\n",ans+r);
    return 0;
}

Compilation message

stove.cpp: In function 'int main()':
stove.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld%lld%lld",&n,&k,&x);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
stove.cpp:12:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld",&y);
         ~~~~~^~~~~~~~~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 3 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 384 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 3 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 3 ms 384 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 6 ms 384 KB Output is correct
15 Correct 3 ms 384 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 3 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 3 ms 384 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 6 ms 384 KB Output is correct
15 Correct 3 ms 384 KB Output is correct
16 Correct 23 ms 2048 KB Output is correct
17 Correct 25 ms 2048 KB Output is correct
18 Correct 22 ms 2140 KB Output is correct
19 Correct 25 ms 2048 KB Output is correct
20 Correct 36 ms 2168 KB Output is correct
21 Correct 24 ms 2048 KB Output is correct
22 Correct 23 ms 2048 KB Output is correct
23 Correct 22 ms 2048 KB Output is correct
24 Correct 24 ms 2048 KB Output is correct