oj.uz

Submission #288322

# Submission time Handle Problem Language Result Execution time Memory
288322 2020-09-01T12:14:06 Z Saboon Horses (IOI15_horses) C++17
100 / 100
 1053 ms 25860 KB 
#include "horses.h"
#include<bits/stdc++.h>
using namespace std;
const int maxn = 5e5 + 10;
const int inf = 1e9 + 1;
const int mod = 1e9 + 7;
int n;
int x[maxn], y[maxn];

struct Node{
	int ans;
	int opt;
	int mulx;
	int mudx;
} seg[4*maxn];

int Mul(int a, int b){
	return min(1LL*inf, 1LL*a*b);
}

int getmul(int id, int L, int R, int l, int r){
	if (r <= L or R <= l)
		return 1;
	if (l <= L and R <= r)
		return seg[id].mulx;
	int mid = (L+R) >> 1;
	return Mul(getmul(2*id+0,L,mid,l,r),getmul(2*id+1,mid,R,l,r));
}

int CmpFunc(int a, int b){
	if (a > b)
		swap(a, b);
	if (y[a] >= 1LL*y[b]*getmul(1, 0, n, a+1, b+1))
		return a;
	return b;
}

Node merge(Node a, Node b){
	if (CmpFunc(a.opt,b.opt) == a.opt){
		a.mulx = Mul(a.mulx, b.mulx);
		a.mudx = 1LL*a.mudx*b.mudx%mod;
		return a;
	}
	b.ans = 1LL*b.ans*a.mudx%mod;
	b.mulx = Mul(a.mulx, b.mulx);
	b.mudx = 1LL*a.mudx*b.mudx%mod;
	return b;
}

void change(int id, int L, int R, int idx){
	if (idx < L or R <= idx)
		return;
	if (L+1 == R){
		seg[id].ans = 1LL*x[L]*y[L]%mod, seg[id].opt = L, seg[id].mulx = seg[id].mudx = x[L];
		return;
	}
	int mid = (L + R) >> 1;
	change(2*id+0, L, mid, idx);
	change(2*id+1, mid, R, idx);
	seg[id] = merge(seg[2*id+0],seg[2*id+1]);
}

void build(int id, int L, int R){
	if (L+1 == R){
		seg[id].ans = 1LL*x[L]*y[L]%mod, seg[id].opt = L, seg[id].mulx = seg[id].mudx = x[L];
		return;
	}
	int mid = (L + R) >> 1;
	build(2*id+0, L, mid);
	build(2*id+1, mid, R);
	seg[id] = merge(seg[2*id+0],seg[2*id+1]);
}

int init(int N, int X[], int Y[]){
	n = N;
	for (int i = 0; i < n; i++)
		x[i] = X[i], y[i] = Y[i];
	build(1, 0, n);
	return seg[1].ans;
}

int updateX(int pos, int val){
	x[pos] = val;
	change(1, 0, n, pos);
	return seg[1].ans;
}

int updateY(int pos, int val){
	y[pos] = val;
	change(1, 0, n, pos);
	return seg[1].ans;
}

Compilation message

horses.cpp: In function 'int Mul(int, int)':
horses.cpp:18:12: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   18 |  return min(1LL*inf, 1LL*a*b);
      |         ~~~^~~~~~~~~~~~~~~~~~
horses.cpp: In function 'Node merge(Node, Node)':
horses.cpp:41:29: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   41 |   a.mudx = 1LL*a.mudx*b.mudx%mod;
      |            ~~~~~~~~~~~~~~~~~^~~~
horses.cpp:44:26: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   44 |  b.ans = 1LL*b.ans*a.mudx%mod;
      |          ~~~~~~~~~~~~~~~~^~~~
horses.cpp:46:28: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   46 |  b.mudx = 1LL*a.mudx*b.mudx%mod;
      |           ~~~~~~~~~~~~~~~~~^~~~
horses.cpp: In function 'void change(int, int, int, int)':
horses.cpp:54:30: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   54 |   seg[id].ans = 1LL*x[L]*y[L]%mod, seg[id].opt = L, seg[id].mulx = seg[id].mudx = x[L];
      |                 ~~~~~~~~~~~~~^~~~
horses.cpp: In function 'void build(int, int, int)':
horses.cpp:65:30: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   65 |   seg[id].ans = 1LL*x[L]*y[L]%mod, seg[id].opt = L, seg[id].mulx = seg[id].mudx = x[L];
      |                 ~~~~~~~~~~~~~^~~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 0 ms 384 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 0 ms 384 KB Output is correct
21 Correct 0 ms 384 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 2 ms 384 KB Output is correct
24 Correct 3 ms 384 KB Output is correct
25 Correct 2 ms 384 KB Output is correct
26 Correct 2 ms 384 KB Output is correct
27 Correct 3 ms 384 KB Output is correct
28 Correct 2 ms 384 KB Output is correct
29 Correct 3 ms 384 KB Output is correct
30 Correct 2 ms 384 KB Output is correct
31 Correct 2 ms 384 KB Output is correct
32 Correct 3 ms 384 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 591 ms 25860 KB Output is correct
2 Correct 573 ms 25592 KB Output is correct
3 Correct 721 ms 25800 KB Output is correct
4 Correct 695 ms 25848 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 0 ms 384 KB Output is correct
21 Correct 0 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 2 ms 384 KB Output is correct
24 Correct 3 ms 384 KB Output is correct
25 Correct 3 ms 512 KB Output is correct
26 Correct 2 ms 384 KB Output is correct
27 Correct 3 ms 384 KB Output is correct
28 Correct 2 ms 384 KB Output is correct
29 Correct 3 ms 384 KB Output is correct
30 Correct 2 ms 384 KB Output is correct
31 Correct 3 ms 512 KB Output is correct
32 Correct 2 ms 384 KB Output is correct
33 Correct 260 ms 24696 KB Output is correct
34 Correct 251 ms 24696 KB Output is correct
35 Correct 229 ms 24696 KB Output is correct
36 Correct 208 ms 24696 KB Output is correct
37 Correct 248 ms 24824 KB Output is correct
38 Correct 200 ms 24696 KB Output is correct
39 Correct 222 ms 24656 KB Output is correct
40 Correct 212 ms 24696 KB Output is correct
41 Correct 211 ms 24644 KB Output is correct
42 Correct 221 ms 24612 KB Output is correct
43 Correct 165 ms 24572 KB Output is correct
44 Correct 164 ms 24568 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 2 ms 384 KB Output is correct
24 Correct 2 ms 384 KB Output is correct
25 Correct 2 ms 384 KB Output is correct
26 Correct 2 ms 384 KB Output is correct
27 Correct 3 ms 384 KB Output is correct
28 Correct 2 ms 384 KB Output is correct
29 Correct 3 ms 384 KB Output is correct
30 Correct 2 ms 384 KB Output is correct
31 Correct 3 ms 384 KB Output is correct
32 Correct 3 ms 416 KB Output is correct
33 Correct 588 ms 25716 KB Output is correct
34 Correct 589 ms 25720 KB Output is correct
35 Correct 732 ms 25720 KB Output is correct
36 Correct 693 ms 25592 KB Output is correct
37 Correct 254 ms 24696 KB Output is correct
38 Correct 254 ms 24692 KB Output is correct
39 Correct 228 ms 24712 KB Output is correct
40 Correct 208 ms 24696 KB Output is correct
41 Correct 246 ms 24712 KB Output is correct
42 Correct 200 ms 24696 KB Output is correct
43 Correct 226 ms 24568 KB Output is correct
44 Correct 204 ms 24696 KB Output is correct
45 Correct 214 ms 24696 KB Output is correct
46 Correct 222 ms 24696 KB Output is correct
47 Correct 169 ms 24568 KB Output is correct
48 Correct 167 ms 24568 KB Output is correct
49 Correct 1024 ms 25592 KB Output is correct
50 Correct 985 ms 25720 KB Output is correct
51 Correct 651 ms 25720 KB Output is correct
52 Correct 439 ms 25592 KB Output is correct
53 Correct 1053 ms 25572 KB Output is correct
54 Correct 599 ms 25464 KB Output is correct
55 Correct 813 ms 24824 KB Output is correct
56 Correct 636 ms 25848 KB Output is correct
57 Correct 688 ms 25592 KB Output is correct
58 Correct 809 ms 25720 KB Output is correct
59 Correct 169 ms 24604 KB Output is correct