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답안 #388219

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
388219 2021-04-10T15:01:06 Z Vladth11 Feast (NOI19_feast) C++14
100 / 100
 262 ms 15152 KB 
#include <bits/stdc++.h>
#define debug(x) cerr << #x << " " << x << "\n"
#define debugs(x) cerr << #x << " " << x << " "

using namespace std;
typedef long long ll;
typedef pair <ll, ll> pii;

const ll NMAX = 300001;
const ll nr_of_bits = 16;
const ll MOD = 1000000007;

ll cnt[NMAX][2];
ll dp[NMAX][2];
ll n, k;
ll v[NMAX];

pii OK(ll cost){
    for(ll i = 1; i <= n; i++){
        if(dp[i - 1][1] - cost > dp[i - 1][0]){
            cnt[i][0] = cnt[i - 1][1] + 1;
            dp[i][0] = dp[i - 1][1] - cost;
        }else{
            cnt[i][0] = cnt[i - 1][0];
            dp[i][0] = dp[i - 1][0];
        }
        if(dp[i - 1][1] > dp[i - 1][0]){
            cnt[i][1] = cnt[i - 1][1];
            dp[i][1] = dp[i - 1][1] + v[i];
        }else{
            cnt[i][1] = cnt[i - 1][0];
            dp[i][1] = dp[i - 1][0] + v[i];
        }
    }
    ll cfinal, dfinal;
    if(dp[n][1] - cost > dp[n][0]){
        dfinal = dp[n][1] - cost;
        cfinal = cnt[n][1] + 1;
    }else{
        dfinal = dp[n][0];
        cfinal = cnt[n][0];
    }
    return {dfinal + cost * k, cfinal};
}

int main() {
    //ifstream cin(".in");
    //ofstream cout(".out");
    ll i;
    cin >> n;
    cin >> k;
    for(i = 1; i <= n; i++){
        cin >> v[i];
    }
    ll r = 0, pas = (1LL << 50);
    while(pas){
        if(OK(r + pas).second > k)
            r += pas;
        pas /= 2;
    }
    if(OK(r).second > k)
        r++;
    cout << OK(r).first;
    return 0;
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 176 ms 11564 KB Output is correct
2 Correct 180 ms 11816 KB Output is correct
3 Correct 185 ms 11972 KB Output is correct
4 Correct 182 ms 11936 KB Output is correct
5 Correct 179 ms 11848 KB Output is correct
6 Correct 184 ms 11716 KB Output is correct
7 Correct 180 ms 11588 KB Output is correct
8 Correct 181 ms 11804 KB Output is correct
9 Correct 177 ms 11628 KB Output is correct
10 Correct 192 ms 11812 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 126 ms 11744 KB Output is correct
2 Correct 130 ms 11964 KB Output is correct
3 Correct 124 ms 11684 KB Output is correct
4 Correct 128 ms 11716 KB Output is correct
5 Correct 176 ms 11612 KB Output is correct
6 Correct 124 ms 11716 KB Output is correct
7 Correct 131 ms 11912 KB Output is correct
8 Correct 183 ms 11860 KB Output is correct
9 Correct 177 ms 11584 KB Output is correct
10 Correct 127 ms 11844 KB Output is correct

Subtask #3
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 210 ms 11864 KB Output is correct
2 Correct 208 ms 14660 KB Output is correct
3 Correct 210 ms 14796 KB Output is correct
4 Correct 216 ms 14736 KB Output is correct
5 Correct 206 ms 14768 KB Output is correct
6 Correct 210 ms 14904 KB Output is correct
7 Correct 214 ms 15152 KB Output is correct
8 Correct 208 ms 14788 KB Output is correct
9 Correct 212 ms 14944 KB Output is correct
10 Correct 216 ms 15044 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 1 ms 204 KB Output is correct

Subtask #5
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 304 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct

Subtask #6
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 304 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 2 ms 320 KB Output is correct
22 Correct 2 ms 332 KB Output is correct
23 Correct 2 ms 332 KB Output is correct
24 Correct 2 ms 332 KB Output is correct
25 Correct 2 ms 320 KB Output is correct
26 Correct 2 ms 324 KB Output is correct
27 Correct 2 ms 316 KB Output is correct
28 Correct 2 ms 344 KB Output is correct
29 Correct 2 ms 316 KB Output is correct
30 Correct 2 ms 308 KB Output is correct

Subtask #7
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 176 ms 11564 KB Output is correct
2 Correct 180 ms 11816 KB Output is correct
3 Correct 185 ms 11972 KB Output is correct
4 Correct 182 ms 11936 KB Output is correct
5 Correct 179 ms 11848 KB Output is correct
6 Correct 184 ms 11716 KB Output is correct
7 Correct 180 ms 11588 KB Output is correct
8 Correct 181 ms 11804 KB Output is correct
9 Correct 177 ms 11628 KB Output is correct
10 Correct 192 ms 11812 KB Output is correct
11 Correct 126 ms 11744 KB Output is correct
12 Correct 130 ms 11964 KB Output is correct
13 Correct 124 ms 11684 KB Output is correct
14 Correct 128 ms 11716 KB Output is correct
15 Correct 176 ms 11612 KB Output is correct
16 Correct 124 ms 11716 KB Output is correct
17 Correct 131 ms 11912 KB Output is correct
18 Correct 183 ms 11860 KB Output is correct
19 Correct 177 ms 11584 KB Output is correct
20 Correct 127 ms 11844 KB Output is correct
21 Correct 210 ms 11864 KB Output is correct
22 Correct 208 ms 14660 KB Output is correct
23 Correct 210 ms 14796 KB Output is correct
24 Correct 216 ms 14736 KB Output is correct
25 Correct 206 ms 14768 KB Output is correct
26 Correct 210 ms 14904 KB Output is correct
27 Correct 214 ms 15152 KB Output is correct
28 Correct 208 ms 14788 KB Output is correct
29 Correct 212 ms 14944 KB Output is correct
30 Correct 216 ms 15044 KB Output is correct
31 Correct 0 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 1 ms 204 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 208 KB Output is correct
40 Correct 1 ms 204 KB Output is correct
41 Correct 1 ms 204 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 1 ms 304 KB Output is correct
45 Correct 1 ms 204 KB Output is correct
46 Correct 1 ms 332 KB Output is correct
47 Correct 1 ms 332 KB Output is correct
48 Correct 1 ms 332 KB Output is correct
49 Correct 1 ms 332 KB Output is correct
50 Correct 1 ms 332 KB Output is correct
51 Correct 2 ms 320 KB Output is correct
52 Correct 2 ms 332 KB Output is correct
53 Correct 2 ms 332 KB Output is correct
54 Correct 2 ms 332 KB Output is correct
55 Correct 2 ms 320 KB Output is correct
56 Correct 2 ms 324 KB Output is correct
57 Correct 2 ms 316 KB Output is correct
58 Correct 2 ms 344 KB Output is correct
59 Correct 2 ms 316 KB Output is correct
60 Correct 2 ms 308 KB Output is correct
61 Correct 250 ms 14632 KB Output is correct
62 Correct 249 ms 15040 KB Output is correct
63 Correct 222 ms 14588 KB Output is correct
64 Correct 253 ms 14916 KB Output is correct
65 Correct 262 ms 14868 KB Output is correct
66 Correct 251 ms 14912 KB Output is correct
67 Correct 248 ms 14592 KB Output is correct
68 Correct 214 ms 15036 KB Output is correct
69 Correct 204 ms 14696 KB Output is correct
70 Correct 206 ms 14532 KB Output is correct