oj.uz

Submission #819917

# Submission time Handle Problem Language Result Execution time Memory
819917 2023-08-10T15:31:35 Z Kerim Horses (IOI15_horses) C++17
34 / 100
 1500 ms 31348 KB 
#include "horses.h"
#include "bits/stdc++.h"
#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,fma")

#define ff first
#define ss second
using namespace std;
typedef pair<int,int> pii;
const int MAXN = 5e5+5;
const int INF = 1e9+7;
int a[MAXN], b[MAXN], n;

pii s[MAXN<<2];
int ans[MAXN<<2];

pii merge(pii x, pii y){
	pii z;
	z.ff = min(x.ff * 1LL * y.ff, INF * 1LL);
	z.ss = (x.ss * 1LL * y.ss) % INF;
	return z;
}

pii get(int l, int r, int nd, int x, int y){
	if (l > y or x > r)
		return {1, 1};
	if (l <= x and y <= r)
		return s[nd];
	int mid = (x+y) >> 1;
	return merge(get(l, r, nd<<1, x, mid), get(l, r, nd<<1|1, mid+1, y));
}

int cmp(int x, int y){
	if (x == y)
		return 0;
	if (x > y)
		swap(x, y);
	return b[x] < b[y] * 1LL * get(x+1, y, 1, 0, n-1).ff;
}

void upd(int p, int nd, int x, int y){
	if (x == y){
		ans[nd] = x;
		s[nd].ff = s[nd].ss = a[p];
		return;
	}
	int mid = (x+y) >> 1;
	if (p <= mid)
		upd(p, nd<<1, x, mid);
	else	
		upd(p, nd<<1|1, mid+1, y);
	s[nd] = merge(s[nd<<1], s[nd<<1|1]);
	if (cmp(ans[nd<<1], ans[nd<<1|1]))
		ans[nd] = ans[nd<<1|1];
	else
		ans[nd] = ans[nd<<1];
}


int ask(int pos){
	return (get(0, pos, 1, 0, n-1).ss *1LL* b[pos]) % INF;
}

int init(int N, int X[], int Y[]) {
	n = N;
	for (int i = 0; i < n; i++){
		a[i] = X[i], b[i] = Y[i];
		upd(i, 1, 0, n-1);
	}
	return ask(ans[1]);
}

int updateX(int pos, int val) {	
	a[pos] = val;
	upd(pos, 1, 0, n-1);
	return ask(ans[1]);
}

int updateY(int pos, int val) {
	b[pos] = val;
	upd(pos, 1, 0, n-1);
	return ask(ans[1]);
}

Compilation message

horses.cpp: In function 'pii merge(pii, pii)':
horses.cpp:21:12: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   21 |  z.ff = min(x.ff * 1LL * y.ff, INF * 1LL);
      |         ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
horses.cpp:22:29: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   22 |  z.ss = (x.ss * 1LL * y.ss) % INF;
      |         ~~~~~~~~~~~~~~~~~~~~^~~~~
horses.cpp: In function 'int ask(int)':
horses.cpp:63:50: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   63 |  return (get(0, pos, 1, 0, n-1).ss *1LL* b[pos]) % INF;
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 0 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

Subtask #2
17.0 / 17.0

# 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 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 0 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 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 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
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 2 ms 380 KB Output is correct
24 Correct 2 ms 340 KB Output is correct
25 Correct 2 ms 340 KB Output is correct
26 Correct 2 ms 340 KB Output is correct
27 Correct 3 ms 340 KB Output is correct
28 Correct 2 ms 340 KB Output is correct
29 Correct 3 ms 340 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 3 ms 340 KB Output is correct
32 Correct 3 ms 340 KB Output is correct

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1392 ms 21360 KB Output is correct
2 Correct 1382 ms 21348 KB Output is correct
3 Execution timed out 1518 ms 21400 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# 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 1 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 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 1 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
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 2 ms 340 KB Output is correct
25 Correct 2 ms 340 KB Output is correct
26 Correct 2 ms 340 KB Output is correct
27 Correct 3 ms 340 KB Output is correct
28 Correct 2 ms 340 KB Output is correct
29 Correct 3 ms 340 KB Output is correct
30 Correct 2 ms 340 KB Output is correct
31 Correct 3 ms 340 KB Output is correct
32 Correct 3 ms 340 KB Output is correct
33 Correct 1445 ms 20552 KB Output is correct
34 Correct 1482 ms 24456 KB Output is correct
35 Correct 1179 ms 31348 KB Output is correct
36 Correct 1206 ms 31232 KB Output is correct
37 Execution timed out 1562 ms 18220 KB Time limit exceeded
38 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# 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 1 ms 212 KB Output is correct
9 Correct 0 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
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 2 ms 340 KB Output is correct
25 Correct 2 ms 340 KB Output is correct
26 Correct 2 ms 340 KB Output is correct
27 Correct 3 ms 340 KB Output is correct
28 Correct 2 ms 340 KB Output is correct
29 Correct 3 ms 340 KB Output is correct
30 Correct 2 ms 340 KB Output is correct
31 Correct 3 ms 340 KB Output is correct
32 Correct 3 ms 340 KB Output is correct
33 Correct 1451 ms 21416 KB Output is correct
34 Correct 1371 ms 21348 KB Output is correct
35 Correct 1489 ms 21352 KB Output is correct
36 Execution timed out 1549 ms 21320 KB Time limit exceeded
37 Halted 0 ms 0 KB -