oj.uz

Submission #1010260

# Submission time Handle Problem Language Result Execution time Memory
1010260 2024-06-28T15:37:46 Z hotboy2703 Horses (IOI15_horses) C++17
100 / 100
 484 ms 68220 KB 
#include "horses.h"

#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define pll pair <ll,ll>
#define fi first
#define se second
#define MP make_pair
#define sz(a) (ll((a).size()))
#define BIT(mask,i) (((mask) >> (i))&1)
#define MASK(i) (1LL << (i))
set <ll> bigX;
const ll MAXN = 5e5+100;
const ll MOD = 1e9 + 7;
ll n;
set <ll> s;
namespace X{
    ll tree[MAXN*4];
    ll a[MAXN];
    void build(ll id,ll l,ll r){
        if (l==r)tree[id] = a[l];
        else{
            ll mid = (l + r) >> 1;
            build(id<<1,l,mid);
            build(id<<1|1,mid+1,r);
            tree[id] = tree[id<<1] * tree[id<<1|1] % MOD;
        }
    }
    void update(ll id,ll l,ll r,ll i){
        if (l > i || r < i)return;
        if (l == r){
            tree[id] = a[l];
            return;
        }
        ll mid = (l + r) >> 1;
        update(id<<1,l,mid,i);
        update(id<<1|1,mid+1,r,i);
        tree[id] = tree[id<<1] * tree[id<<1|1] % MOD;
    }
    ll get(ll id,ll l,ll r,ll i){
        if (l > i)return 1;
        if (r <= i)return tree[id];
        ll mid = (l + r) >> 1;
        return get(id<<1,l,mid,i)*get(id<<1|1,mid+1,r,i)%MOD;
    }
    void init(int X[]){
        for (ll i = 0;i < n;i ++)a[i] = X[i];
        for (ll i = 0;i < n;i ++){
            if (a[i] > 1)s.insert(i);
        }
        build(1,0,n-1);
    }
    void update(ll pos,ll val){
        s.erase(pos);
        a[pos]=val;
        if (val > 1)s.insert(pos);
        update(1,0,n-1,pos);
    }
    ll get(ll x){
        return get(1,0,n-1,x);
    }
}
namespace Y{
    ll a[MAXN];
    ll tree[MAXN*4];
    ll better(ll x,ll y){
        if (x==-1)return y;
        if (y==-1)return x;
        if (a[x] > a[y])return x;
        return y;
    }
    void build(ll id,ll l,ll r){
        if (l==r)tree[id] = l;
        else{
            ll mid = (l + r) >> 1;
            build(id<<1,l,mid);
            build(id<<1|1,mid+1,r);
            tree[id] = better(tree[id<<1],tree[id<<1|1]);
        }
    }
    void update(ll id,ll l,ll r,ll i){
        if (l > i || r < i)return;
        if (l == r){
            return;
        }
        ll mid = (l + r) >> 1;
        update(id<<1,l,mid,i);
        update(id<<1|1,mid+1,r,i);
        tree[id] = better(tree[id<<1],tree[id<<1|1]);
    }
    ll get(ll id,ll l,ll r,ll l1,ll r1){
        if (l > r1 || l1 > r)return -1;
        if (l1 <= l && r <= r1)return tree[id];
        ll mid = (l + r) >> 1;
        return better(get(id<<1,l,mid,l1,r1),get(id<<1|1,mid+1,r,l1,r1));
    }
    void init(int Y[]){
        for (ll i = 0;i < n;i ++)a[i] = Y[i];
        build(1,0,n-1);
    }
    void update(ll pos,ll val){
        a[pos] = val;
        update(1,0,n-1,pos);
    }
    ll get(ll l,ll r){
        return get(1,0,n-1,l,r);
    }
}
ll solve(){
    ll best = 0;
    ll best_id = -1;
    ll last = n;
    s.insert(0);
    for (auto it = s.rbegin();it != s.rend();it ++){
        ll tmp = Y::get(*it,last-1);
        if (Y::a[tmp] > best){
            best = Y::a[tmp];
            best_id = tmp;
        }
        best *= X::a[*it];
        const static ll INF = 1e9;
        if (best > INF){
            break;
        }
        last = *it;
    }
    if (X::a[0]==1)s.erase(0);
//    cout<<best_id<<'\n';
    return Y::a[best_id] * X::get(best_id) % MOD;
}
int init(int N, int X[], int Y[]) {
    n=N;
    X::init(X);
    Y::init(Y);
	return solve();
}

int updateX(int pos, int val) {
    X::update(pos,val);
	return solve();
}

int updateY(int pos, int val) {
    Y::update(pos,val);
	return solve();
}

Compilation message

horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:136:14: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
  136 |  return solve();
      |         ~~~~~^~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:141:14: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
  141 |  return solve();
      |         ~~~~~^~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:146:14: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
  146 |  return solve();
      |         ~~~~~^~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6488 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 1 ms 6492 KB Output is correct
10 Correct 1 ms 6492 KB Output is correct
11 Correct 1 ms 6492 KB Output is correct
12 Correct 1 ms 6492 KB Output is correct
13 Correct 1 ms 6492 KB Output is correct
14 Correct 1 ms 6492 KB Output is correct
15 Correct 1 ms 6492 KB Output is correct
16 Correct 1 ms 6492 KB Output is correct
17 Correct 1 ms 6492 KB Output is correct
18 Correct 1 ms 6492 KB Output is correct
19 Correct 1 ms 6492 KB Output is correct
20 Correct 1 ms 6492 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 2 ms 6504 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6488 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 1 ms 6492 KB Output is correct
10 Correct 1 ms 6492 KB Output is correct
11 Correct 1 ms 6492 KB Output is correct
12 Correct 1 ms 6492 KB Output is correct
13 Correct 1 ms 6492 KB Output is correct
14 Correct 1 ms 6492 KB Output is correct
15 Correct 1 ms 6492 KB Output is correct
16 Correct 1 ms 6492 KB Output is correct
17 Correct 1 ms 6492 KB Output is correct
18 Correct 1 ms 6488 KB Output is correct
19 Correct 1 ms 6492 KB Output is correct
20 Correct 1 ms 6492 KB Output is correct
21 Correct 1 ms 6492 KB Output is correct
22 Correct 1 ms 6492 KB Output is correct
23 Correct 1 ms 6492 KB Output is correct
24 Correct 1 ms 6492 KB Output is correct
25 Correct 1 ms 6492 KB Output is correct
26 Correct 1 ms 6492 KB Output is correct
27 Correct 3 ms 6492 KB Output is correct
28 Correct 2 ms 6492 KB Output is correct
29 Correct 2 ms 6620 KB Output is correct
30 Correct 1 ms 6492 KB Output is correct
31 Correct 2 ms 6492 KB Output is correct
32 Correct 3 ms 6492 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 454 ms 55560 KB Output is correct
2 Correct 254 ms 68220 KB Output is correct
3 Correct 259 ms 59220 KB Output is correct
4 Correct 248 ms 63220 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6488 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 1 ms 6488 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 1 ms 6492 KB Output is correct
10 Correct 1 ms 6492 KB Output is correct
11 Correct 1 ms 6608 KB Output is correct
12 Correct 1 ms 6492 KB Output is correct
13 Correct 1 ms 6492 KB Output is correct
14 Correct 1 ms 6492 KB Output is correct
15 Correct 1 ms 6492 KB Output is correct
16 Correct 1 ms 6492 KB Output is correct
17 Correct 1 ms 6492 KB Output is correct
18 Correct 1 ms 6492 KB Output is correct
19 Correct 1 ms 6492 KB Output is correct
20 Correct 1 ms 6492 KB Output is correct
21 Correct 1 ms 6492 KB Output is correct
22 Correct 1 ms 6492 KB Output is correct
23 Correct 1 ms 6492 KB Output is correct
24 Correct 1 ms 6492 KB Output is correct
25 Correct 1 ms 6492 KB Output is correct
26 Correct 1 ms 6488 KB Output is correct
27 Correct 3 ms 6488 KB Output is correct
28 Correct 3 ms 6492 KB Output is correct
29 Correct 1 ms 6492 KB Output is correct
30 Correct 1 ms 6608 KB Output is correct
31 Correct 2 ms 6488 KB Output is correct
32 Correct 3 ms 6492 KB Output is correct
33 Correct 30 ms 31324 KB Output is correct
34 Correct 30 ms 35284 KB Output is correct
35 Correct 152 ms 65648 KB Output is correct
36 Correct 138 ms 65488 KB Output is correct
37 Correct 64 ms 33364 KB Output is correct
38 Correct 80 ms 46264 KB Output is correct
39 Correct 23 ms 33060 KB Output is correct
40 Correct 131 ms 60652 KB Output is correct
41 Correct 41 ms 33124 KB Output is correct
42 Correct 53 ms 33344 KB Output is correct
43 Correct 123 ms 61000 KB Output is correct
44 Correct 133 ms 61016 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6592 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 6488 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 1 ms 6492 KB Output is correct
10 Correct 1 ms 6488 KB Output is correct
11 Correct 1 ms 6492 KB Output is correct
12 Correct 1 ms 6492 KB Output is correct
13 Correct 1 ms 6492 KB Output is correct
14 Correct 1 ms 6492 KB Output is correct
15 Correct 1 ms 6492 KB Output is correct
16 Correct 1 ms 6492 KB Output is correct
17 Correct 1 ms 6492 KB Output is correct
18 Correct 1 ms 6492 KB Output is correct
19 Correct 1 ms 6492 KB Output is correct
20 Correct 1 ms 6492 KB Output is correct
21 Correct 1 ms 6492 KB Output is correct
22 Correct 1 ms 6492 KB Output is correct
23 Correct 1 ms 6492 KB Output is correct
24 Correct 2 ms 6740 KB Output is correct
25 Correct 2 ms 6492 KB Output is correct
26 Correct 1 ms 6492 KB Output is correct
27 Correct 3 ms 6492 KB Output is correct
28 Correct 2 ms 6492 KB Output is correct
29 Correct 1 ms 6492 KB Output is correct
30 Correct 1 ms 6492 KB Output is correct
31 Correct 2 ms 6488 KB Output is correct
32 Correct 3 ms 6492 KB Output is correct
33 Correct 484 ms 55472 KB Output is correct
34 Correct 264 ms 68100 KB Output is correct
35 Correct 214 ms 59476 KB Output is correct
36 Correct 229 ms 63200 KB Output is correct
37 Correct 30 ms 35152 KB Output is correct
38 Correct 31 ms 35152 KB Output is correct
39 Correct 149 ms 65584 KB Output is correct
40 Correct 140 ms 65528 KB Output is correct
41 Correct 76 ms 33332 KB Output is correct
42 Correct 81 ms 46164 KB Output is correct
43 Correct 23 ms 33252 KB Output is correct
44 Correct 147 ms 60568 KB Output is correct
45 Correct 43 ms 33244 KB Output is correct
46 Correct 53 ms 33360 KB Output is correct
47 Correct 119 ms 60988 KB Output is correct
48 Correct 128 ms 60964 KB Output is correct
49 Correct 112 ms 38376 KB Output is correct
50 Correct 90 ms 38216 KB Output is correct
51 Correct 268 ms 67500 KB Output is correct
52 Correct 173 ms 66924 KB Output is correct
53 Correct 413 ms 36464 KB Output is correct
54 Correct 180 ms 50000 KB Output is correct
55 Correct 91 ms 34156 KB Output is correct
56 Correct 201 ms 62292 KB Output is correct
57 Correct 246 ms 34900 KB Output is correct
58 Correct 366 ms 35360 KB Output is correct
59 Correct 151 ms 61064 KB Output is correct