oj.uz

Submission #101731

# Submission time Handle Problem Language Result Execution time Memory
101731 2019-03-19T16:14:17 Z mayhoubsaleh Simfonija (COCI19_simfonija) C++14
44 / 110
 136 ms 2808 KB 
#include <bits/stdc++.h>
#define ll long long
#define pb push_back

using namespace std;

ll n,k;
ll dif[100005];
ll suf[100005],pre[100005];
ll x;
bool com(ll a,ll b){
    return abs(a-x)>abs(b-x);
}
int main(){
    cin>>n>>k;
    for(ll i=1;i<=n;i++){
        cin>>dif[i];
    }
    for(ll i=1;i<=n;i++){
        ll x;
        cin>>x;
        dif[i]=x-dif[i];
    }

    sort(dif+1,dif+n+1);

    for(ll i=1;i<=n;i++){
        pre[i]=pre[i-1]+dif[i];
    }
    for(ll i=n;i>=1;i--){
        suf[i]=suf[i+1]+dif[i];
    }
    ll ans=1e18;
    for(ll i=1;i<=n;i++){
        //cout<<dif[i]*(i-1)-pre[i-1]+suf[i+1]-dif[i]*(n-i)<<endl;

        if(ans>dif[i]*(i-1)-pre[i-1]+suf[i+1]-dif[i]*(n-i)){
            ans=dif[i]*(i-1)-pre[i-1]+suf[i+1]-dif[i]*(n-i);
            x=dif[i];
        }
    }
    sort(dif+1,dif+n+1,com);
    ans=0;
    for(ll i=k+1;i<=n;i++){
        ans+=abs(dif[i]-x);
    }
    cout<<ans<<endl;
    return 0;
}

Subtask #1
11.0 / 11.0

# 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

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 92 ms 2652 KB Output is correct
2 Correct 116 ms 2720 KB Output is correct
3 Correct 107 ms 2680 KB Output is correct

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 105 ms 2712 KB Output is correct
2 Correct 86 ms 2688 KB Output is correct
3 Correct 103 ms 2680 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 99 ms 2752 KB Output is correct
2 Correct 95 ms 2680 KB Output is correct
3 Correct 104 ms 2652 KB Output is correct

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 64 ms 2672 KB Output is correct
2 Correct 136 ms 2808 KB Output is correct
3 Incorrect 118 ms 2680 KB Output isn't correct

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 136 ms 2704 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 91 ms 2684 KB Output is correct
2 Incorrect 105 ms 2808 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #8
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 120 ms 2712 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 101 ms 2684 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 95 ms 2688 KB Output isn't correct
2 Halted 0 ms 0 KB -