| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 614000 |
2022-07-30T16:10:07 Z |
Lucpp |
Horses (IOI15_horses) |
C++17 |
|
730 ms |
65608 KB |
#include "horses.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll MOD = 1e9+7;
template<typename T>
struct SegTree{
virtual T combine(T t1, T t2) = 0;
virtual T id() = 0;
int cap;
vector<T> seg;
void build(const vector<T>& v){
int n = (int)v.size();
for(cap=1; cap < n; cap*=2);
seg.assign(2*cap, id());
for(int i = 0; i < n; i++) seg[i+cap] = v[i];
for(int i = cap-1; i >= 1; i--) seg[i] = combine(seg[2*i], seg[2*i+1]);
}
void upd(int i, T v){
i += cap;
seg[i] = v;
while(i > 1){
i /= 2;
seg[i] = combine(seg[2*i], seg[2*i+1]);
}
}
T qry(int l, int r, int a, int b, int i){
if(l <= a && b <= r) return seg[i];
if(b < l || r < a) return id();
int m = (a+b)/2;
return combine(qry(l, r, a, m, 2*i), qry(l, r, m+1, b, 2*i+1));
}
T qry(int l, int r){return qry(l, r, 1, cap, 1);}
};
struct ProdTree : SegTree<ll> {
ll combine(ll t1, ll t2) override {return (t1*t2)%MOD;}
ll id() override {return 1;}
};
struct MaxTree : SegTree<ll> {
ll combine(ll t1, ll t2) override {return max(t1, t2);}
ll id() override {return 0;}
};
vector<ll> x, y;
set<int> non1;
int n;
ProdTree p;
MaxTree m;
int calc(){
ll prod = 1;
auto it = non1.rbegin();
for(; it != non1.rend() && prod < MOD; it++){
prod *= x[*it];
}
int last = -1;
if(prod >= MOD) last = *(--it);
ll pref = p.qry(1, last+1);
prod = 1;
ll best = 0;
while(it != non1.rbegin()){
it--;
best = max(best, prod*m.qry(last+1, *it));
prod *= x[*it];
last = *it;
}
best = max(best, prod*m.qry(last+1, n));
return int(((best%MOD)*pref)%MOD);
}
int init(int N, int X[], int Y[]){
n = N;
x.resize(n);
y.resize(n);
for(int i = 0; i < n; i++){
x[i] = X[i], y[i] = Y[i];
if(x[i] != 1) non1.insert(i);
}
p.build(x);
m.build(y);
return calc();
}
int updateX(int pos, int val) {
x[pos] = val;
p.upd(pos, val);
if(val == 1) non1.erase(pos);
else non1.insert(pos);
return calc();
}
int updateY(int pos, int val) {
y[pos] = val;
m.upd(pos, val);
return calc();
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
1 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
0 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
0 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
1 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
1 ms |
212 KB |
Output is correct |
| 16 |
Correct |
1 ms |
212 KB |
Output is correct |
| 17 |
Correct |
1 ms |
212 KB |
Output is correct |
| 18 |
Correct |
1 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Correct |
0 ms |
212 KB |
Output is correct |
| 22 |
Correct |
1 ms |
212 KB |
Output is correct |
| 23 |
Correct |
2 ms |
316 KB |
Output is correct |
| 24 |
Correct |
1 ms |
340 KB |
Output is correct |
| 25 |
Correct |
2 ms |
340 KB |
Output is correct |
| 26 |
Correct |
1 ms |
340 KB |
Output is correct |
| 27 |
Correct |
4 ms |
340 KB |
Output is correct |
| 28 |
Correct |
2 ms |
340 KB |
Output is correct |
| 29 |
Correct |
1 ms |
340 KB |
Output is correct |
| 30 |
Correct |
1 ms |
340 KB |
Output is correct |
| 31 |
Correct |
3 ms |
340 KB |
Output is correct |
| 32 |
Correct |
3 ms |
340 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
719 ms |
53016 KB |
Output is correct |
| 2 |
Correct |
319 ms |
52848 KB |
Output is correct |
| 3 |
Correct |
348 ms |
56700 KB |
Output is correct |
| 4 |
Correct |
423 ms |
60464 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
0 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
1 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
1 ms |
212 KB |
Output is correct |
| 13 |
Correct |
1 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
0 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Correct |
1 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Correct |
0 ms |
212 KB |
Output is correct |
| 22 |
Correct |
0 ms |
212 KB |
Output is correct |
| 23 |
Correct |
1 ms |
340 KB |
Output is correct |
| 24 |
Correct |
1 ms |
340 KB |
Output is correct |
| 25 |
Correct |
2 ms |
444 KB |
Output is correct |
| 26 |
Correct |
2 ms |
440 KB |
Output is correct |
| 27 |
Correct |
5 ms |
340 KB |
Output is correct |
| 28 |
Correct |
2 ms |
320 KB |
Output is correct |
| 29 |
Correct |
1 ms |
340 KB |
Output is correct |
| 30 |
Correct |
2 ms |
316 KB |
Output is correct |
| 31 |
Correct |
3 ms |
340 KB |
Output is correct |
| 32 |
Correct |
3 ms |
312 KB |
Output is correct |
| 33 |
Correct |
47 ms |
32516 KB |
Output is correct |
| 34 |
Correct |
48 ms |
32564 KB |
Output is correct |
| 35 |
Correct |
182 ms |
62808 KB |
Output is correct |
| 36 |
Correct |
188 ms |
62804 KB |
Output is correct |
| 37 |
Correct |
104 ms |
30844 KB |
Output is correct |
| 38 |
Correct |
106 ms |
43508 KB |
Output is correct |
| 39 |
Correct |
31 ms |
30460 KB |
Output is correct |
| 40 |
Correct |
168 ms |
57952 KB |
Output is correct |
| 41 |
Correct |
63 ms |
30540 KB |
Output is correct |
| 42 |
Correct |
76 ms |
30564 KB |
Output is correct |
| 43 |
Correct |
153 ms |
58268 KB |
Output is correct |
| 44 |
Correct |
163 ms |
58316 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
1 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
1 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
1 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
1 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Correct |
0 ms |
212 KB |
Output is correct |
| 22 |
Correct |
0 ms |
212 KB |
Output is correct |
| 23 |
Correct |
1 ms |
340 KB |
Output is correct |
| 24 |
Correct |
1 ms |
340 KB |
Output is correct |
| 25 |
Correct |
1 ms |
340 KB |
Output is correct |
| 26 |
Correct |
1 ms |
340 KB |
Output is correct |
| 27 |
Correct |
4 ms |
340 KB |
Output is correct |
| 28 |
Correct |
2 ms |
340 KB |
Output is correct |
| 29 |
Correct |
1 ms |
340 KB |
Output is correct |
| 30 |
Correct |
1 ms |
340 KB |
Output is correct |
| 31 |
Correct |
3 ms |
340 KB |
Output is correct |
| 32 |
Correct |
4 ms |
312 KB |
Output is correct |
| 33 |
Correct |
701 ms |
56692 KB |
Output is correct |
| 34 |
Correct |
318 ms |
65608 KB |
Output is correct |
| 35 |
Correct |
335 ms |
56780 KB |
Output is correct |
| 36 |
Correct |
415 ms |
60564 KB |
Output is correct |
| 37 |
Correct |
46 ms |
32592 KB |
Output is correct |
| 38 |
Correct |
45 ms |
32500 KB |
Output is correct |
| 39 |
Correct |
202 ms |
62784 KB |
Output is correct |
| 40 |
Correct |
189 ms |
62856 KB |
Output is correct |
| 41 |
Correct |
100 ms |
30716 KB |
Output is correct |
| 42 |
Correct |
102 ms |
43488 KB |
Output is correct |
| 43 |
Correct |
37 ms |
30460 KB |
Output is correct |
| 44 |
Correct |
163 ms |
57872 KB |
Output is correct |
| 45 |
Correct |
61 ms |
30564 KB |
Output is correct |
| 46 |
Correct |
82 ms |
30656 KB |
Output is correct |
| 47 |
Correct |
168 ms |
58340 KB |
Output is correct |
| 48 |
Correct |
164 ms |
58432 KB |
Output is correct |
| 49 |
Correct |
179 ms |
35576 KB |
Output is correct |
| 50 |
Correct |
135 ms |
35588 KB |
Output is correct |
| 51 |
Correct |
338 ms |
64660 KB |
Output is correct |
| 52 |
Correct |
303 ms |
64184 KB |
Output is correct |
| 53 |
Correct |
730 ms |
33912 KB |
Output is correct |
| 54 |
Correct |
312 ms |
47524 KB |
Output is correct |
| 55 |
Correct |
106 ms |
31640 KB |
Output is correct |
| 56 |
Correct |
281 ms |
59700 KB |
Output is correct |
| 57 |
Correct |
386 ms |
32212 KB |
Output is correct |
| 58 |
Correct |
555 ms |
32720 KB |
Output is correct |
| 59 |
Correct |
157 ms |
58244 KB |
Output is correct |
