oj.uz

Submission #986370

# Submission time Handle Problem Language Result Execution time Memory
986370 2024-05-20T11:22:48 Z Pyqe Horses (IOI15_horses) C++17
100 / 100
 617 ms 72576 KB 
#include "horses.h"
#include <bits/stdc++.h>

using namespace std;

int n,ma=1e9,a[500069],wg[500069],fw[2][500069],fi,pwk,dv=1e9+7,inf=1e9;

struct segtree
{
	int l,r,mx;
	segtree *p[2];
	
	void bd(int lh,int rh)
	{
		l=lh;
		r=rh;
		if(l==r)
		{
			mx=wg[l];
		}
		else
		{
			int ii,md=(l+r)/2;
			
			for(ii=0;ii<2;ii++)
			{
				p[ii]=new segtree;
				p[ii]->bd(!ii?l:md+1,!ii?md:r);
			}
			mx=max(p[0]->mx,p[1]->mx);
		}
	}
	void ud(int x,int w)
	{
		if(l>x||r<x);
		else if(l>=x&&r<=x)
		{
			mx=w;
		}
		else
		{
			int ii;
			
			for(ii=0;ii<2;ii++)
			{
				p[ii]->ud(x,w);
			}
			mx=max(p[0]->mx,p[1]->mx);
		}
	}
	int qr(int lh,int rh)
	{
		if(l>rh||r<lh)
		{
			return -inf;
		}
		else if(l>=lh&&r<=rh)
		{
			return mx;
		}
		else
		{
			return max(p[0]->qr(lh,rh),p[1]->qr(lh,rh));
		}
	}
}
sg;

int pw(int x,int y)
{
	if(!y)
	{
		return 1;
	}
	pwk=pw(x,y/2);
	pwk=(long long)pwk*pwk%dv;
	if(y%2)
	{
		pwk=(long long)pwk*x%dv;
	}
	return pwk;
}

void ud(int xx,int x,int w)
{
	for(fi=x;fi<=n;fi+=fi&-fi)
	{
		if(!xx)
		{
			fw[xx][fi]=(long long)fw[xx][fi]*w%dv;
		}
		else
		{
			fw[xx][fi]+=w;
		}
	}
}

int qr(int xx,int x)
{
	int z=!xx;
	
	for(fi=x;fi;fi-=fi&-fi)
	{
		if(!xx)
		{
			z=(long long)z*fw[xx][fi]%dv;
		}
		else
		{
			z+=fw[xx][fi];
		}
	}
	return z;
}

int bl(int xx,int x)
{
	int i,p=0,sm=0;
	
	for(i=18;i+1;i--)
	{
		if((p|1<<i)<=n&&sm+fw[xx][p|1<<i]<x)
		{
			p|=1<<i;
			sm+=fw[xx][p];
		}
	}
	return p;
}

int slv()
{
	int k,l;
	long long ml=1,mx=0;
	
	for(k=n+1;k&&ml<=ma;)
	{
		l=k;
		k=bl(1,qr(1,k-1))+1;
		if(k==l)
		{
			break;
		}
		mx=max(mx*a[l],(long long)sg.qr(k,l-1));
		ml*=a[k];
	}
	return mx%dv*qr(0,k)%dv;
}

int init(int on,int aa[],int wgg[])
{
	int i;
	
	n=on;
	for(i=1;i<=n;i++)
	{
		fw[0][i]=1;
	}
	for(i=1;i<=n;i++)
	{
		a[i]=aa[i-1];
		wg[i]=wgg[i-1];
		ud(0,i,a[i]);
		ud(1,i,!!(a[i]-1));
	}
	sg.bd(1,n);
	return slv();
}

int updateX(int x,int w)
{
	x++;
	ud(0,x,(long long)pw(a[x],dv-2)*w%dv);
	ud(1,x,!!(w-1)-!!(a[x]-1));
	a[x]=w;
	return slv();
}

int updateY(int x,int w)
{
	x++;
	sg.ud(x,w);
	return slv();
}

Compilation message

horses.cpp: In function 'int pw(int, int)':
horses.cpp:76:24: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   76 |  pwk=(long long)pwk*pwk%dv;
      |      ~~~~~~~~~~~~~~~~~~^~~
horses.cpp:79:23: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   79 |   pwk=(long long)pwk*x%dv;
      |       ~~~~~~~~~~~~~~~~^~~
horses.cpp: In function 'void ud(int, int, int)':
horses.cpp:90:38: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   90 |    fw[xx][fi]=(long long)fw[xx][fi]*w%dv;
      |               ~~~~~~~~~~~~~~~~~~~~~~~^~~
horses.cpp: In function 'int qr(int, int)':
horses.cpp:107:29: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  107 |    z=(long long)z*fw[xx][fi]%dv;
      |      ~~~~~~~~~~~~~~~~~~~~~~~^~~
horses.cpp: In function 'int slv()':
horses.cpp:148:22: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  148 |  return mx%dv*qr(0,k)%dv;
      |         ~~~~~~~~~~~~~^~~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:174:35: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  174 |  ud(0,x,(long long)pw(a[x],dv-2)*w%dv);
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~

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 6588 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 6592 KB Output is correct
10 Correct 1 ms 6500 KB Output is correct
11 Correct 1 ms 6596 KB Output is correct
12 Correct 1 ms 6492 KB Output is correct
13 Correct 1 ms 6592 KB Output is correct
14 Correct 1 ms 6488 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 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 6492 KB Output is correct
7 Correct 2 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 6592 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 6488 KB Output is correct
17 Correct 1 ms 6492 KB Output is correct
18 Correct 1 ms 6488 KB Output is correct
19 Correct 2 ms 6492 KB Output is correct
20 Correct 1 ms 6488 KB Output is correct
21 Correct 1 ms 6744 KB Output is correct
22 Correct 1 ms 6492 KB Output is correct
23 Correct 2 ms 6492 KB Output is correct
24 Correct 2 ms 6488 KB Output is correct
25 Correct 2 ms 6492 KB Output is correct
26 Correct 2 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 3 ms 6492 KB Output is correct
30 Correct 2 ms 6492 KB Output is correct
31 Correct 3 ms 6492 KB Output is correct
32 Correct 5 ms 6492 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 463 ms 63872 KB Output is correct
2 Correct 231 ms 72576 KB Output is correct
3 Correct 211 ms 63828 KB Output is correct
4 Correct 220 ms 67664 KB Output is correct

Subtask #4
23.0 / 23.0

# 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 6596 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 2 ms 6492 KB Output is correct
8 Correct 2 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 2 ms 6748 KB Output is correct
12 Correct 1 ms 6488 KB Output is correct
13 Correct 1 ms 6764 KB Output is correct
14 Correct 1 ms 6492 KB Output is correct
15 Correct 1 ms 6592 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 6744 KB Output is correct
20 Correct 2 ms 6492 KB Output is correct
21 Correct 1 ms 6492 KB Output is correct
22 Correct 1 ms 6488 KB Output is correct
23 Correct 2 ms 6492 KB Output is correct
24 Correct 2 ms 6492 KB Output is correct
25 Correct 2 ms 6620 KB Output is correct
26 Correct 2 ms 6492 KB Output is correct
27 Correct 5 ms 6604 KB Output is correct
28 Correct 2 ms 6492 KB Output is correct
29 Correct 2 ms 6492 KB Output is correct
30 Correct 2 ms 6492 KB Output is correct
31 Correct 4 ms 6492 KB Output is correct
32 Correct 4 ms 6732 KB Output is correct
33 Correct 93 ms 62988 KB Output is correct
34 Correct 93 ms 63208 KB Output is correct
35 Correct 129 ms 69968 KB Output is correct
36 Correct 125 ms 69884 KB Output is correct
37 Correct 135 ms 61308 KB Output is correct
38 Correct 90 ms 62092 KB Output is correct
39 Correct 80 ms 61192 KB Output is correct
40 Correct 116 ms 64968 KB Output is correct
41 Correct 104 ms 61124 KB Output is correct
42 Correct 109 ms 61296 KB Output is correct
43 Correct 116 ms 65364 KB Output is correct
44 Correct 100 ms 65368 KB Output is correct

Subtask #5
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 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 6588 KB Output is correct
15 Correct 1 ms 6492 KB Output is correct
16 Correct 2 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 2 ms 6492 KB Output is correct
24 Correct 2 ms 6492 KB Output is correct
25 Correct 2 ms 6492 KB Output is correct
26 Correct 2 ms 6736 KB Output is correct
27 Correct 4 ms 6492 KB Output is correct
28 Correct 2 ms 6492 KB Output is correct
29 Correct 2 ms 6492 KB Output is correct
30 Correct 2 ms 6492 KB Output is correct
31 Correct 4 ms 6728 KB Output is correct
32 Correct 4 ms 6492 KB Output is correct
33 Correct 441 ms 63936 KB Output is correct
34 Correct 233 ms 72512 KB Output is correct
35 Correct 202 ms 63824 KB Output is correct
36 Correct 227 ms 67712 KB Output is correct
37 Correct 86 ms 62996 KB Output is correct
38 Correct 82 ms 63056 KB Output is correct
39 Correct 125 ms 69972 KB Output is correct
40 Correct 126 ms 69968 KB Output is correct
41 Correct 131 ms 61320 KB Output is correct
42 Correct 84 ms 62032 KB Output is correct
43 Correct 95 ms 60996 KB Output is correct
44 Correct 105 ms 64972 KB Output is correct
45 Correct 94 ms 61668 KB Output is correct
46 Correct 121 ms 61124 KB Output is correct
47 Correct 97 ms 65292 KB Output is correct
48 Correct 102 ms 65412 KB Output is correct
49 Correct 196 ms 65000 KB Output is correct
50 Correct 170 ms 65008 KB Output is correct
51 Correct 228 ms 71956 KB Output is correct
52 Correct 184 ms 71380 KB Output is correct
53 Correct 617 ms 63500 KB Output is correct
54 Correct 234 ms 63956 KB Output is correct
55 Correct 185 ms 62444 KB Output is correct
56 Correct 208 ms 66828 KB Output is correct
57 Correct 356 ms 62804 KB Output is correct
58 Correct 480 ms 63396 KB Output is correct
59 Correct 99 ms 65432 KB Output is correct