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Submission #535637

# Submission time Handle Problem Language Result Execution time Memory
535637 2022-03-10T18:39:53 Z leaked Feast (NOI19_feast) C++14
100 / 100
 177 ms 12776 KB 
#include <bits/stdc++.h>

#define f first
#define s second
#define m_p make_pair
#define vec vector
#define pb push_back
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
#define sz(x) (int)(x).size()
#define pw(x) (1LL<<(x))
#define int long long
#define fast_resp ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
typedef pair<int,int> pii;
typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pll;
template<class T> bool umin(T &a,const T &b){return (a>b?a=b,1:0);}
template<class T> bool umax(T &a,const T &b){return (a<b?a=b,1:0);}
const ll inf=1e18;
signed main(){
    fast_resp;
    int n,k;
    cin>>n>>k;
    vec<int>a(n);
    for(auto &z : a) cin>>z;
    vec<ll>pref(n,0);
    for(int i=0;i<n;i++) pref[i]=(i?pref[i-1]:0)+a[i];
    auto check=[&](ll x){
        vec<pll>dp(n+1,m_p(-inf,-1));
        pll mx={0,0};
        dp[0]={0,0};
//        cout<<"CHECK "<<x<<endl;
        for(int i=0;i<n;i++){
            dp[i+1]=dp[i];
            umax(dp[i+1],m_p(dp[i].f-x,dp[i].s+1));
            umax(dp[i+1],m_p(mx.f+pref[i]-x,mx.s+1));
            umax(mx,m_p(dp[i+1].f-pref[i],dp[i+1].s));
//            cout<<"I "<<dp[i+1].f<<endl;
        }
//        cout<<"W "<<dp[n].f<<' '<<dp[n].s<<endl;
        return dp[n];
    };
    ll l=0,r=1e18;
    while(l!=r){
        ll tm=(l+r)/2;
        if(check(tm).s<k) r=tm;
        else l=tm+1;
    }
    --l;
//    cout<<k<<' '<<l<<endl;
    cout<<check(l).f+1ll*k*l;
    return 0;
}
/*

*/

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 118 ms 9412 KB Output is correct
2 Correct 99 ms 9560 KB Output is correct
3 Correct 93 ms 9720 KB Output is correct
4 Correct 102 ms 9660 KB Output is correct
5 Correct 108 ms 9552 KB Output is correct
6 Correct 106 ms 9420 KB Output is correct
7 Correct 95 ms 9356 KB Output is correct
8 Correct 99 ms 9608 KB Output is correct
9 Correct 98 ms 9440 KB Output is correct
10 Correct 106 ms 9416 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 81 ms 9460 KB Output is correct
2 Correct 82 ms 9676 KB Output is correct
3 Correct 86 ms 9460 KB Output is correct
4 Correct 99 ms 9544 KB Output is correct
5 Correct 107 ms 9404 KB Output is correct
6 Correct 79 ms 9456 KB Output is correct
7 Correct 81 ms 9724 KB Output is correct
8 Correct 90 ms 9632 KB Output is correct
9 Correct 108 ms 9396 KB Output is correct
10 Correct 82 ms 9636 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 110 ms 9556 KB Output is correct
2 Correct 122 ms 12472 KB Output is correct
3 Correct 140 ms 12588 KB Output is correct
4 Correct 124 ms 12476 KB Output is correct
5 Correct 112 ms 12588 KB Output is correct
6 Correct 110 ms 12616 KB Output is correct
7 Correct 121 ms 12688 KB Output is correct
8 Correct 161 ms 12584 KB Output is correct
9 Correct 116 ms 12748 KB Output is correct
10 Correct 115 ms 12724 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 320 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 320 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 324 KB Output is correct
18 Correct 1 ms 320 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 320 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 324 KB Output is correct
18 Correct 1 ms 320 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 360 KB Output is correct
23 Correct 1 ms 316 KB Output is correct
24 Correct 1 ms 360 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 2 ms 340 KB Output is correct
28 Correct 1 ms 344 KB Output is correct
29 Correct 2 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct

Subtask #7
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 118 ms 9412 KB Output is correct
2 Correct 99 ms 9560 KB Output is correct
3 Correct 93 ms 9720 KB Output is correct
4 Correct 102 ms 9660 KB Output is correct
5 Correct 108 ms 9552 KB Output is correct
6 Correct 106 ms 9420 KB Output is correct
7 Correct 95 ms 9356 KB Output is correct
8 Correct 99 ms 9608 KB Output is correct
9 Correct 98 ms 9440 KB Output is correct
10 Correct 106 ms 9416 KB Output is correct
11 Correct 81 ms 9460 KB Output is correct
12 Correct 82 ms 9676 KB Output is correct
13 Correct 86 ms 9460 KB Output is correct
14 Correct 99 ms 9544 KB Output is correct
15 Correct 107 ms 9404 KB Output is correct
16 Correct 79 ms 9456 KB Output is correct
17 Correct 81 ms 9724 KB Output is correct
18 Correct 90 ms 9632 KB Output is correct
19 Correct 108 ms 9396 KB Output is correct
20 Correct 82 ms 9636 KB Output is correct
21 Correct 110 ms 9556 KB Output is correct
22 Correct 122 ms 12472 KB Output is correct
23 Correct 140 ms 12588 KB Output is correct
24 Correct 124 ms 12476 KB Output is correct
25 Correct 112 ms 12588 KB Output is correct
26 Correct 110 ms 12616 KB Output is correct
27 Correct 121 ms 12688 KB Output is correct
28 Correct 161 ms 12584 KB Output is correct
29 Correct 116 ms 12748 KB Output is correct
30 Correct 115 ms 12724 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 320 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 1 ms 320 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 0 ms 212 KB Output is correct
41 Correct 1 ms 340 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 324 KB Output is correct
48 Correct 1 ms 320 KB Output is correct
49 Correct 1 ms 212 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 1 ms 332 KB Output is correct
52 Correct 1 ms 360 KB Output is correct
53 Correct 1 ms 316 KB Output is correct
54 Correct 1 ms 360 KB Output is correct
55 Correct 1 ms 364 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 2 ms 340 KB Output is correct
58 Correct 1 ms 344 KB Output is correct
59 Correct 2 ms 340 KB Output is correct
60 Correct 1 ms 340 KB Output is correct
61 Correct 157 ms 12460 KB Output is correct
62 Correct 151 ms 12776 KB Output is correct
63 Correct 135 ms 12364 KB Output is correct
64 Correct 163 ms 12680 KB Output is correct
65 Correct 152 ms 12612 KB Output is correct
66 Correct 159 ms 12620 KB Output is correct
67 Correct 177 ms 12452 KB Output is correct
68 Correct 115 ms 12684 KB Output is correct
69 Correct 110 ms 12528 KB Output is correct
70 Correct 122 ms 12384 KB Output is correct