oj.uz

Submission #391970

# Submission time Handle Problem Language Result Execution time Memory
391970 2021-04-20T09:09:58 Z i_am_noob Candies (JOI18_candies) C++17
100 / 100
 4537 ms 7048 KB 
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,avx,avx2,fma")
#include<bits/stdc++.h>
#pragma GCC optimize("Ofast,unroll-loops")
using namespace std;
#define rep(i,b,a) for(int i=(b); i<((int)(a)); i++)
#define maxn 200005
signed main(){
    ios_base::sync_with_stdio(0),cin.tie(0);
    int n,a[maxn];
    int_fast64_t dp[3][maxn];
    cin >> n;
    rep(i,0,n) cin >> a[i];
    dp[0][0]=dp[1][0]=0,dp[1][1]=a[0];
    rep(i,1,n){
        int x=(i+1)%3,y=(i+2)%3,z=i%3,l=1,r=i+2>>1,mid;
        dp[x][0]=0;
        if(dp[z][i+2>>1]>dp[y][i>>1]+a[i]){
            rep(j,1,i+4>>1) dp[x][j]=dp[z][j];
            continue;
        }
        while(l<r){
            mid=l+r>>1;
            if(dp[z][mid]<=dp[y][mid-1]+a[i]) r=mid;
            else l=mid+1;
        }
        rep(j,1,l) dp[x][j]=dp[z][j];
        rep(j,l,i+4>>1) dp[x][j]=dp[y][j-1]+a[i];
    }
    rep(i,1,n+3>>1) cout << dp[n%3][i] << "\n";
}

Compilation message

candies.cpp: In function 'int main()':
candies.cpp:15:46: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   15 |         int x=(i+1)%3,y=(i+2)%3,z=i%3,l=1,r=i+2>>1,mid;
      |                                             ~^~
candies.cpp:17:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   17 |         if(dp[z][i+2>>1]>dp[y][i>>1]+a[i]){
      |                  ~^~
candies.cpp:18:22: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   18 |             rep(j,1,i+4>>1) dp[x][j]=dp[z][j];
      |                     ~^~
candies.cpp:5:44: note: in definition of macro 'rep'
    5 | #define rep(i,b,a) for(int i=(b); i<((int)(a)); i++)
      |                                            ^
candies.cpp:22:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   22 |             mid=l+r>>1;
      |                 ~^~
candies.cpp:27:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   27 |         rep(j,l,i+4>>1) dp[x][j]=dp[y][j-1]+a[i];
      |                 ~^~
candies.cpp:5:44: note: in definition of macro 'rep'
    5 | #define rep(i,b,a) for(int i=(b); i<((int)(a)); i++)
      |                                            ^
candies.cpp:29:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   29 |     rep(i,1,n+3>>1) cout << dp[n%3][i] << "\n";
      |             ~^~
candies.cpp:5:44: note: in definition of macro 'rep'
    5 | #define rep(i,b,a) for(int i=(b); i<((int)(a)); i++)
      |                                            ^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 332 KB Output is correct
2 Correct 2 ms 332 KB Output is correct
3 Correct 2 ms 332 KB Output is correct
4 Correct 2 ms 332 KB Output is correct
5 Correct 2 ms 332 KB Output is correct
6 Correct 2 ms 332 KB Output is correct
7 Correct 3 ms 332 KB Output is correct
8 Correct 2 ms 336 KB Output is correct
9 Correct 3 ms 332 KB Output is correct
10 Correct 2 ms 336 KB Output is correct
11 Correct 2 ms 332 KB Output is correct
12 Correct 2 ms 332 KB Output is correct
13 Correct 2 ms 332 KB Output is correct
14 Correct 2 ms 332 KB Output is correct
15 Correct 2 ms 340 KB Output is correct
16 Correct 2 ms 332 KB Output is correct
17 Correct 2 ms 332 KB Output is correct
18 Correct 2 ms 336 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 332 KB Output is correct

Subtask #2
92.0 / 92.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 332 KB Output is correct
2 Correct 2 ms 332 KB Output is correct
3 Correct 2 ms 332 KB Output is correct
4 Correct 2 ms 332 KB Output is correct
5 Correct 2 ms 332 KB Output is correct
6 Correct 2 ms 332 KB Output is correct
7 Correct 3 ms 332 KB Output is correct
8 Correct 2 ms 336 KB Output is correct
9 Correct 3 ms 332 KB Output is correct
10 Correct 2 ms 336 KB Output is correct
11 Correct 2 ms 332 KB Output is correct
12 Correct 2 ms 332 KB Output is correct
13 Correct 2 ms 332 KB Output is correct
14 Correct 2 ms 332 KB Output is correct
15 Correct 2 ms 340 KB Output is correct
16 Correct 2 ms 332 KB Output is correct
17 Correct 2 ms 332 KB Output is correct
18 Correct 2 ms 336 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 4456 ms 7040 KB Output is correct
22 Correct 4458 ms 6836 KB Output is correct
23 Correct 4509 ms 7048 KB Output is correct
24 Correct 4537 ms 6632 KB Output is correct
25 Correct 4457 ms 6616 KB Output is correct
26 Correct 4453 ms 6628 KB Output is correct
27 Correct 4472 ms 6876 KB Output is correct
28 Correct 4455 ms 6932 KB Output is correct
29 Correct 4478 ms 6936 KB Output is correct
30 Correct 4533 ms 6976 KB Output is correct
31 Correct 4449 ms 7044 KB Output is correct
32 Correct 4354 ms 6872 KB Output is correct
33 Correct 4528 ms 6572 KB Output is correct
34 Correct 4397 ms 6656 KB Output is correct
35 Correct 4405 ms 6612 KB Output is correct
36 Correct 4389 ms 6908 KB Output is correct
37 Correct 4462 ms 7008 KB Output is correct
38 Correct 4436 ms 6996 KB Output is correct
39 Correct 4400 ms 6644 KB Output is correct
40 Correct 4418 ms 6648 KB Output is correct
41 Correct 4446 ms 6628 KB Output is correct
42 Correct 4446 ms 6880 KB Output is correct
43 Correct 4449 ms 7016 KB Output is correct
44 Correct 4473 ms 6908 KB Output is correct
45 Correct 4388 ms 6852 KB Output is correct
46 Correct 4513 ms 6900 KB Output is correct
47 Correct 4401 ms 7016 KB Output is correct
48 Correct 4514 ms 6836 KB Output is correct
49 Correct 4465 ms 6852 KB Output is correct
50 Correct 4387 ms 6852 KB Output is correct