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Submission #1049511

# Submission time Handle Problem Language Result Execution time Memory
1049511 2024-08-08T19:59:21 Z dpsaveslives Horses (IOI15_horses) C++17
100 / 100
 88 ms 55900 KB 
#include <bits/stdc++.h>
#define ll long long
#define d double
using namespace std;
const int MAXN = 5e5+1;
const ll MOD = 1e9+7;
int x[MAXN], y[MAXN], n;
struct node{
    d mx, sum;
    ll res, mult;
}tree[MAXN<<2];
void pushup(int p){
    tree[p].sum = tree[p<<1].sum+tree[(p<<1)|1].sum;
    tree[p].mx = max(tree[p<<1].mx,tree[p<<1].sum+tree[(p<<1)|1].mx);
    tree[p].mult = tree[p<<1].mult*tree[(p<<1)|1].mult%MOD;
    if(tree[p<<1].mx >= tree[p<<1].sum+tree[(p<<1)|1].mx){
        tree[p].res = tree[p<<1].res;
    }
    else{
        tree[p].res = tree[(p<<1)|1].res%MOD*tree[p<<1].mult%MOD;
    }
}
void build(int l, int r, int p){
    if(l == r){
        tree[p].sum = log(1.0*x[l]);
        tree[p].mx = log(1.0*x[l]*y[l]);
        tree[p].mult = x[l]%MOD;
        tree[p].res = x[l]%MOD*y[l]%MOD;
        return;
    }
    int mid = (l+r)>>1;
    build(l,mid,(p<<1)); build(mid+1,r,(p<<1)|1);
    pushup(p);
}
void upd(int tar, int l, int r, int p){
    if(l == r){
        tree[p].mx = log(1.0*x[tar]*y[tar]);
        tree[p].sum = log(1.0*x[tar]);
        tree[p].mult = x[tar]%MOD;
        tree[p].res = x[tar]%MOD*y[tar]%MOD;
        return;
    }
    int mid = (l+r)>>1;
    if(tar <= mid) upd(tar,l,mid,p<<1);
    else upd(tar,mid+1,r,(p<<1)|1);
    pushup(p);
}
ll init(int N, int X[], int Y[]){
    n = N;
    for(int i = 0;i<N;++i){
        x[i+1] = X[i];
        y[i+1] = Y[i];
    }
    build(1,N,1);
    return tree[1].res;
}
ll updateX(int pos, int val){
    x[pos+1] = val;
    upd(pos+1,1,n,1);
    return tree[1].res;
}
ll updateY(int pos, int val){
    y[pos+1] = val;
    upd(pos+1,1,n,1);
    return tree[1].res;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 0 ms 4444 KB Output is correct
3 Correct 0 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 0 ms 4444 KB Output is correct
6 Correct 0 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 0 ms 4444 KB Output is correct
10 Correct 0 ms 4444 KB Output is correct
11 Correct 0 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 0 ms 4444 KB Output is correct
16 Correct 0 ms 4444 KB Output is correct
17 Correct 0 ms 4440 KB Output is correct
18 Correct 0 ms 4444 KB Output is correct
19 Correct 0 ms 4444 KB Output is correct
20 Correct 0 ms 4444 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 0 ms 4444 KB Output is correct
3 Correct 0 ms 4444 KB Output is correct
4 Correct 0 ms 4444 KB Output is correct
5 Correct 0 ms 4444 KB Output is correct
6 Correct 0 ms 4444 KB Output is correct
7 Correct 0 ms 4444 KB Output is correct
8 Correct 0 ms 4444 KB Output is correct
9 Correct 0 ms 4444 KB Output is correct
10 Correct 0 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 0 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 0 ms 4444 KB Output is correct
16 Correct 0 ms 4444 KB Output is correct
17 Correct 0 ms 4444 KB Output is correct
18 Correct 0 ms 4444 KB Output is correct
19 Correct 0 ms 4444 KB Output is correct
20 Correct 0 ms 4444 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 1 ms 4440 KB Output is correct
23 Correct 1 ms 4444 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 1 ms 4444 KB Output is correct
27 Correct 1 ms 4444 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 4444 KB Output is correct
30 Correct 1 ms 4444 KB Output is correct
31 Correct 1 ms 4444 KB Output is correct
32 Correct 1 ms 4444 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 45 ms 42916 KB Output is correct
2 Correct 86 ms 43092 KB Output is correct
3 Correct 62 ms 46696 KB Output is correct
4 Correct 73 ms 50560 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 0 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 0 ms 4444 KB Output is correct
5 Correct 0 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 0 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 0 ms 4444 KB Output is correct
10 Correct 0 ms 4444 KB Output is correct
11 Correct 0 ms 4444 KB Output is correct
12 Correct 0 ms 4444 KB Output is correct
13 Correct 0 ms 4444 KB Output is correct
14 Correct 0 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 0 ms 4444 KB Output is correct
18 Correct 0 ms 4548 KB Output is correct
19 Correct 0 ms 4444 KB Output is correct
20 Correct 0 ms 4444 KB Output is correct
21 Correct 0 ms 4444 KB Output is correct
22 Correct 0 ms 4444 KB Output is correct
23 Correct 1 ms 4556 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 4552 KB Output is correct
26 Correct 1 ms 4444 KB Output is correct
27 Correct 1 ms 4444 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 4444 KB Output is correct
30 Correct 1 ms 4648 KB Output is correct
31 Correct 1 ms 4444 KB Output is correct
32 Correct 1 ms 4444 KB Output is correct
33 Correct 35 ms 46100 KB Output is correct
34 Correct 33 ms 45968 KB Output is correct
35 Correct 49 ms 53100 KB Output is correct
36 Correct 47 ms 52840 KB Output is correct
37 Correct 20 ms 44376 KB Output is correct
38 Correct 26 ms 45188 KB Output is correct
39 Correct 18 ms 44124 KB Output is correct
40 Correct 34 ms 48044 KB Output is correct
41 Correct 17 ms 44120 KB Output is correct
42 Correct 18 ms 44184 KB Output is correct
43 Correct 32 ms 48468 KB Output is correct
44 Correct 33 ms 48468 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4440 KB Output is correct
2 Correct 0 ms 4444 KB Output is correct
3 Correct 0 ms 4444 KB Output is correct
4 Correct 0 ms 4444 KB Output is correct
5 Correct 0 ms 4444 KB Output is correct
6 Correct 0 ms 4444 KB Output is correct
7 Correct 0 ms 4444 KB Output is correct
8 Correct 0 ms 4444 KB Output is correct
9 Correct 0 ms 4444 KB Output is correct
10 Correct 0 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 0 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 0 ms 4444 KB Output is correct
15 Correct 0 ms 4444 KB Output is correct
16 Correct 0 ms 4444 KB Output is correct
17 Correct 0 ms 4444 KB Output is correct
18 Correct 1 ms 4440 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 0 ms 4444 KB Output is correct
21 Correct 0 ms 4444 KB Output is correct
22 Correct 0 ms 4444 KB Output is correct
23 Correct 1 ms 4440 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 1 ms 4444 KB Output is correct
27 Correct 1 ms 4444 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 4444 KB Output is correct
30 Correct 1 ms 4444 KB Output is correct
31 Correct 1 ms 4444 KB Output is correct
32 Correct 1 ms 4444 KB Output is correct
33 Correct 46 ms 46888 KB Output is correct
34 Correct 88 ms 55900 KB Output is correct
35 Correct 64 ms 46928 KB Output is correct
36 Correct 73 ms 50684 KB Output is correct
37 Correct 32 ms 46164 KB Output is correct
38 Correct 33 ms 46164 KB Output is correct
39 Correct 49 ms 52888 KB Output is correct
40 Correct 47 ms 53036 KB Output is correct
41 Correct 19 ms 44380 KB Output is correct
42 Correct 26 ms 45140 KB Output is correct
43 Correct 18 ms 44116 KB Output is correct
44 Correct 33 ms 47960 KB Output is correct
45 Correct 18 ms 44380 KB Output is correct
46 Correct 18 ms 44236 KB Output is correct
47 Correct 32 ms 48352 KB Output is correct
48 Correct 32 ms 48464 KB Output is correct
49 Correct 69 ms 48008 KB Output is correct
50 Correct 71 ms 47956 KB Output is correct
51 Correct 72 ms 54816 KB Output is correct
52 Correct 67 ms 54608 KB Output is correct
53 Correct 56 ms 46420 KB Output is correct
54 Correct 49 ms 47004 KB Output is correct
55 Correct 36 ms 45140 KB Output is correct
56 Correct 55 ms 49752 KB Output is correct
57 Correct 36 ms 45880 KB Output is correct
58 Correct 40 ms 46416 KB Output is correct
59 Correct 32 ms 48504 KB Output is correct