oj.uz

Submission #268183

# Submission time Handle Problem Language Result Execution time Memory
268183 2020-08-16T10:09:57 Z leductoan Stove (JOI18_stove) C++14
100 / 100
 23 ms 3300 KB 
#include<bits/stdc++.h>
using namespace std;
#define task "stove"
#define lb lower_bound
#define ub upper_bound
#define alll(v) (v).begin(),(v).end()
#define szz(v) (v).size()
#define fi first
#define se second
#define pb push_back
#define FOR(i,a,b) for (ll i = (a), _b = (b); i <= _b; ++i)
#define FORD(i,b,a) for (ll i = (b), _a = (a); i >= _a; --i)
typedef long double ld;
typedef long long ll;
typedef pair<ll,ll> pii;

const ll MOD=1000000007; /// 998244353
const ll base=311; /// for hash actually
const ll N=1e5+5;

ll n,k,a[N];

void solved()
{
    cin>>n>>k;
    --k;
    FOR(i,1,n) cin>>a[i];
    ll ans=a[n]-a[1]+1;
    vector<ll> v;
    FOR(i,2,n) v.pb(a[i]-a[i-1]-1);
    sort(alll(v),greater<ll>());
    FOR(i,0,k-1)
    {
        ans-=v[i];
    }
    cout<<ans;
}
int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);
    if(fopen(task".inp","r"))
    {
        freopen(task".inp","r",stdin);
        freopen(task".out","w",stdout);
    }
    solved();
}

Compilation message

stove.cpp: In function 'int main()':
stove.cpp:43:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   43 |         freopen(task".inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
stove.cpp:44:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   44 |         freopen(task".out","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 2 ms 512 KB Output is correct
11 Correct 1 ms 512 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 512 KB Output is correct
14 Correct 1 ms 512 KB Output is correct
15 Correct 1 ms 384 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 2 ms 512 KB Output is correct
11 Correct 1 ms 512 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 512 KB Output is correct
14 Correct 1 ms 512 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 22 ms 3196 KB Output is correct
17 Correct 22 ms 3196 KB Output is correct
18 Correct 21 ms 3196 KB Output is correct
19 Correct 21 ms 3196 KB Output is correct
20 Correct 21 ms 3196 KB Output is correct
21 Correct 21 ms 3196 KB Output is correct
22 Correct 23 ms 3300 KB Output is correct
23 Correct 21 ms 3196 KB Output is correct
24 Correct 21 ms 3188 KB Output is correct