oj.uz

Submission #398330

# Submission time Handle Problem Language Result Execution time Memory
398330 2021-05-04T07:12:27 Z Everule Packing Biscuits (IOI20_biscuits) C++14
100 / 100
 39 ms 1296 KB 
#include "biscuits.h"
using namespace std;
using ll = long long int;
long long count_tastiness(long long x, std::vector<long long> a) {
    const int k = 61;
    while(a.size() < k){
        a.push_back(0);
    }
    vector<ll> dp(k);
    vector<ll> pdp(k+1);
    vector<ll> psum(k+1);
    for(int i=1;i<=k;i++){
        psum[i] = psum[i-1] + a[i-1] * (1ll<<(i-1));
    }
    for(int i=0;i<k;i++){
        dp[i] = ((psum[i+1] / (1ll<<i) / x) != 0);
        ll sum = psum[i+1] - (1ll<<i) * x;
        ll mx = sum / x;
        if(dp[i] == 0){
            pdp[i+1] = pdp[i];
            continue;
        }
        mx = min(mx, (1ll<<i) - 1);
        for(int j=i-1,s=0;j>=0;--j){
            if(mx & (1ll<<j)){
                dp[i] += pdp[j];
                sum = min(sum , psum[j+1]);
                sum -= (1ll<<j) * x;
                mx ^= (1ll<<j);
                mx =  min(mx, sum/x);
                if(sum < 0) break;
                dp[i]++;
            }
        }
        pdp[i+1] = pdp[i] + dp[i];
    }
    //for(auto &x : pdp) cout<<x<<" ";
    //cout<<"\n";
    return pdp[k] + 1;
}

Compilation message

biscuits.cpp: In function 'long long int count_tastiness(long long int, std::vector<long long int>)':
biscuits.cpp:24:23: warning: unused variable 's' [-Wunused-variable]
   24 |         for(int j=i-1,s=0;j>=0;--j){
      |                       ^

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 284 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 284 KB Output is correct
5 Correct 1 ms 284 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 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 268 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 284 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 288 KB Output is correct
8 Correct 1 ms 288 KB Output is correct
9 Correct 1 ms 288 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 248 KB Output is correct
6 Correct 1 ms 208 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 204 KB Output is correct
10 Correct 1 ms 208 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 204 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 332 KB Output is correct
2 Correct 14 ms 1112 KB Output is correct
3 Correct 14 ms 1100 KB Output is correct
4 Correct 16 ms 1184 KB Output is correct
5 Correct 14 ms 1184 KB Output is correct
6 Correct 12 ms 1060 KB Output is correct
7 Correct 13 ms 1140 KB Output is correct
8 Correct 12 ms 1100 KB Output is correct
9 Correct 13 ms 1100 KB Output is correct
10 Correct 12 ms 1068 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 284 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 284 KB Output is correct
5 Correct 1 ms 284 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 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 268 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 284 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 288 KB Output is correct
22 Correct 1 ms 288 KB Output is correct
23 Correct 1 ms 288 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 248 KB Output is correct
29 Correct 1 ms 208 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 208 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 6 ms 332 KB Output is correct
38 Correct 14 ms 1112 KB Output is correct
39 Correct 14 ms 1100 KB Output is correct
40 Correct 16 ms 1184 KB Output is correct
41 Correct 14 ms 1184 KB Output is correct
42 Correct 12 ms 1060 KB Output is correct
43 Correct 13 ms 1140 KB Output is correct
44 Correct 12 ms 1100 KB Output is correct
45 Correct 13 ms 1100 KB Output is correct
46 Correct 12 ms 1068 KB Output is correct
47 Correct 9 ms 292 KB Output is correct
48 Correct 39 ms 1296 KB Output is correct
49 Correct 19 ms 392 KB Output is correct
50 Correct 35 ms 1136 KB Output is correct
51 Correct 13 ms 1228 KB Output is correct
52 Correct 3 ms 368 KB Output is correct
53 Correct 11 ms 1120 KB Output is correct
54 Correct 19 ms 1104 KB Output is correct
55 Correct 18 ms 1100 KB Output is correct
56 Correct 17 ms 1192 KB Output is correct
57 Correct 16 ms 1100 KB Output is correct