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답안 #1116469

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1116469 2024-11-21T16:56:48 Z manizare Feast (NOI19_feast) C++14
100 / 100
 120 ms 13896 KB 
#include <bits/stdc++.h> 

#define pb push_back
#define F first
#define pii pair<int,int> 
#define all(a) a.begin(),a.end()
#define S second 
#define sz(a) (int)a.size()
#define rep(i , a , b) for(int i = (a) ; i <= (b) ; i++)
#define per(i , a , b) for(int i = (a) ; i >= (b) ; i--)
#define int long long 
using namespace std ;
const int maxn = 3e5 + 10 , mod = 1e9 + 7 , inf = 1e18 ; 
pii dp[maxn][2] ;
int a[maxn] , n , k ; 

void mx(pii &a , pii b){
    if(a.F < b.F || (a.F==b.F && a.S < b.S))a = b; 
}

pii ch(int x){
    dp[0][0] = {0 ,0};
    dp[0][1] = {-inf , 0} ;
    rep(i ,1, n){
        dp[i][0] = dp[i-1][0] ;
        mx(dp[i][0] , dp[i-1][1]) ;
        dp[i][1] = {dp[i-1][1].F+a[i] , dp[i-1][1].S};
        mx(dp[i][1] , {dp[i-1][0].F+a[i]-x , dp[i-1][0].S+1}) ; 
    }
    pii ans = dp[n][0] ;
    mx(ans , dp[n][1]);
    return ans ; 
}

signed main(){
    ios_base::sync_with_stdio(false) ; cin.tie(0) ; 
    cin >> n >> k; 
    rep(i ,1, n){
        cin >> a[i] ;
    }
    int l = 0 , r= 1e18 ;
    while(r-l>1) {
        int mid = (l+r)/2 ; 
        if(ch(mid).S >=  k){
            l = mid ;
        }else{
            r = mid ;
        }
    }
    cout << ch(l).F + l*k << "\n"; 
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 58 ms 12360 KB Output is correct
2 Correct 59 ms 12616 KB Output is correct
3 Correct 57 ms 12112 KB Output is correct
4 Correct 61 ms 13704 KB Output is correct
5 Correct 62 ms 12620 KB Output is correct
6 Correct 62 ms 13412 KB Output is correct
7 Correct 61 ms 13368 KB Output is correct
8 Correct 60 ms 12724 KB Output is correct
9 Correct 60 ms 11856 KB Output is correct
10 Correct 57 ms 11856 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 57 ms 11856 KB Output is correct
2 Correct 48 ms 12680 KB Output is correct
3 Correct 54 ms 12104 KB Output is correct
4 Correct 49 ms 12024 KB Output is correct
5 Correct 53 ms 13652 KB Output is correct
6 Correct 45 ms 12112 KB Output is correct
7 Correct 50 ms 12112 KB Output is correct
8 Correct 55 ms 12132 KB Output is correct
9 Correct 56 ms 13640 KB Output is correct
10 Correct 55 ms 12896 KB Output is correct

Subtask #3
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 81 ms 11856 KB Output is correct
2 Correct 85 ms 12616 KB Output is correct
3 Correct 81 ms 12616 KB Output is correct
4 Correct 85 ms 12712 KB Output is correct
5 Correct 81 ms 12748 KB Output is correct
6 Correct 84 ms 13876 KB Output is correct
7 Correct 76 ms 12112 KB Output is correct
8 Correct 81 ms 13612 KB Output is correct
9 Correct 90 ms 13860 KB Output is correct
10 Correct 82 ms 13896 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 2384 KB Output is correct
3 Correct 1 ms 2384 KB Output is correct
4 Correct 1 ms 2552 KB Output is correct
5 Correct 1 ms 2384 KB Output is correct
6 Correct 1 ms 2384 KB Output is correct
7 Correct 1 ms 2384 KB Output is correct
8 Correct 1 ms 2384 KB Output is correct
9 Correct 1 ms 2384 KB Output is correct
10 Correct 1 ms 2384 KB Output is correct

Subtask #5
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 2384 KB Output is correct
3 Correct 1 ms 2384 KB Output is correct
4 Correct 1 ms 2552 KB Output is correct
5 Correct 1 ms 2384 KB Output is correct
6 Correct 1 ms 2384 KB Output is correct
7 Correct 1 ms 2384 KB Output is correct
8 Correct 1 ms 2384 KB Output is correct
9 Correct 1 ms 2384 KB Output is correct
10 Correct 1 ms 2384 KB Output is correct
11 Correct 1 ms 2384 KB Output is correct
12 Correct 1 ms 2384 KB Output is correct
13 Correct 1 ms 2384 KB Output is correct
14 Correct 1 ms 2384 KB Output is correct
15 Correct 1 ms 2384 KB Output is correct
16 Correct 1 ms 2384 KB Output is correct
17 Correct 1 ms 2516 KB Output is correct
18 Correct 1 ms 2384 KB Output is correct
19 Correct 1 ms 2384 KB Output is correct
20 Correct 1 ms 2384 KB Output is correct

Subtask #6
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 2384 KB Output is correct
3 Correct 1 ms 2384 KB Output is correct
4 Correct 1 ms 2552 KB Output is correct
5 Correct 1 ms 2384 KB Output is correct
6 Correct 1 ms 2384 KB Output is correct
7 Correct 1 ms 2384 KB Output is correct
8 Correct 1 ms 2384 KB Output is correct
9 Correct 1 ms 2384 KB Output is correct
10 Correct 1 ms 2384 KB Output is correct
11 Correct 1 ms 2384 KB Output is correct
12 Correct 1 ms 2384 KB Output is correct
13 Correct 1 ms 2384 KB Output is correct
14 Correct 1 ms 2384 KB Output is correct
15 Correct 1 ms 2384 KB Output is correct
16 Correct 1 ms 2384 KB Output is correct
17 Correct 1 ms 2516 KB Output is correct
18 Correct 1 ms 2384 KB Output is correct
19 Correct 1 ms 2384 KB Output is correct
20 Correct 1 ms 2384 KB Output is correct
21 Correct 2 ms 2556 KB Output is correct
22 Correct 1 ms 2548 KB Output is correct
23 Correct 1 ms 2384 KB Output is correct
24 Correct 2 ms 2384 KB Output is correct
25 Correct 2 ms 2384 KB Output is correct
26 Correct 2 ms 2384 KB Output is correct
27 Correct 1 ms 2384 KB Output is correct
28 Correct 1 ms 2384 KB Output is correct
29 Correct 1 ms 2552 KB Output is correct
30 Correct 2 ms 2556 KB Output is correct

Subtask #7
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 58 ms 12360 KB Output is correct
2 Correct 59 ms 12616 KB Output is correct
3 Correct 57 ms 12112 KB Output is correct
4 Correct 61 ms 13704 KB Output is correct
5 Correct 62 ms 12620 KB Output is correct
6 Correct 62 ms 13412 KB Output is correct
7 Correct 61 ms 13368 KB Output is correct
8 Correct 60 ms 12724 KB Output is correct
9 Correct 60 ms 11856 KB Output is correct
10 Correct 57 ms 11856 KB Output is correct
11 Correct 57 ms 11856 KB Output is correct
12 Correct 48 ms 12680 KB Output is correct
13 Correct 54 ms 12104 KB Output is correct
14 Correct 49 ms 12024 KB Output is correct
15 Correct 53 ms 13652 KB Output is correct
16 Correct 45 ms 12112 KB Output is correct
17 Correct 50 ms 12112 KB Output is correct
18 Correct 55 ms 12132 KB Output is correct
19 Correct 56 ms 13640 KB Output is correct
20 Correct 55 ms 12896 KB Output is correct
21 Correct 81 ms 11856 KB Output is correct
22 Correct 85 ms 12616 KB Output is correct
23 Correct 81 ms 12616 KB Output is correct
24 Correct 85 ms 12712 KB Output is correct
25 Correct 81 ms 12748 KB Output is correct
26 Correct 84 ms 13876 KB Output is correct
27 Correct 76 ms 12112 KB Output is correct
28 Correct 81 ms 13612 KB Output is correct
29 Correct 90 ms 13860 KB Output is correct
30 Correct 82 ms 13896 KB Output is correct
31 Correct 1 ms 2384 KB Output is correct
32 Correct 1 ms 2384 KB Output is correct
33 Correct 1 ms 2384 KB Output is correct
34 Correct 1 ms 2552 KB Output is correct
35 Correct 1 ms 2384 KB Output is correct
36 Correct 1 ms 2384 KB Output is correct
37 Correct 1 ms 2384 KB Output is correct
38 Correct 1 ms 2384 KB Output is correct
39 Correct 1 ms 2384 KB Output is correct
40 Correct 1 ms 2384 KB Output is correct
41 Correct 1 ms 2384 KB Output is correct
42 Correct 1 ms 2384 KB Output is correct
43 Correct 1 ms 2384 KB Output is correct
44 Correct 1 ms 2384 KB Output is correct
45 Correct 1 ms 2384 KB Output is correct
46 Correct 1 ms 2384 KB Output is correct
47 Correct 1 ms 2516 KB Output is correct
48 Correct 1 ms 2384 KB Output is correct
49 Correct 1 ms 2384 KB Output is correct
50 Correct 1 ms 2384 KB Output is correct
51 Correct 2 ms 2556 KB Output is correct
52 Correct 1 ms 2548 KB Output is correct
53 Correct 1 ms 2384 KB Output is correct
54 Correct 2 ms 2384 KB Output is correct
55 Correct 2 ms 2384 KB Output is correct
56 Correct 2 ms 2384 KB Output is correct
57 Correct 1 ms 2384 KB Output is correct
58 Correct 1 ms 2384 KB Output is correct
59 Correct 1 ms 2552 KB Output is correct
60 Correct 2 ms 2556 KB Output is correct
61 Correct 120 ms 13516 KB Output is correct
62 Correct 114 ms 12964 KB Output is correct
63 Correct 94 ms 12616 KB Output is correct
64 Correct 120 ms 12872 KB Output is correct
65 Correct 113 ms 12108 KB Output is correct
66 Correct 117 ms 12872 KB Output is correct
67 Correct 118 ms 11856 KB Output is correct
68 Correct 93 ms 11904 KB Output is correct
69 Correct 84 ms 11856 KB Output is correct
70 Correct 86 ms 13640 KB Output is correct