oj.uz

Submission #1090571

# Submission time Handle Problem Language Result Execution time Memory
1090571 2024-09-18T13:01:25 Z owoovo Horses (IOI15_horses) C++17
34 / 100
 1500 ms 49236 KB 
#include "horses.h"
#include<bits/stdc++.h>
#define ll long long
#define ld float
#define F first 
#define S second
#define lc id*2+1
#define rc id*2+2
using namespace std;
const ll p=1e9+7;
ll pw(ll a,ll b){
	ll ans=1;
	while(b){
		if(b&1)ans*=a,ans%=p;
		b>>=1,a*=a,a%=p;
	}
	return ans;
}
ll x[500010],y[500010],n;
ld x2[500010],y2[500010],u[500010];
struct BIT{
	ll ori[500010];
	void init(){
		for(int i=0;i<=n;i++)ori[i]=1;
		return;
	}
	void modify(ll x,int pos){
		while(pos<=n){
			ori[pos]*=x;
			ori[pos]%=p;
			pos+=pos&(-pos);
		}
		return;
	}
	ll query(ll pos){
		ll ans=1;
		while(pos){
			ans*=ori[pos];
			ans%=p;
			pos-=pos&(-pos);
		}
		return ans;
	}
}bit;
struct node{
	pair<ld,int> val;
	ld tag;
	node(){
	}
};
struct SEG_TREE{
	node ori[2000010];
	void pull(int l,int r,int id){
		if(l==r)return;
		ori[id].val=max(ori[lc].val,ori[rc].val);
		return;
	}
	void push(int l,int r,int id){
		ori[id].val.F+=ori[id].tag;
		if(l!=r){
			int m=(l+r)>>1;
			ori[lc].tag+=ori[id].tag;
			ori[rc].tag+=ori[id].tag;
			push(l,m,lc);
			push(m+1,r,rc);
			pull(l,r,id);
		}
		ori[id].tag=0;
		return;
	}
	void build(int l,int r,int id){
		ori[id].tag=0;
		if(l==r){
			ori[id].val={u[l],l};
			return;
		}
		int m=(l+r)>>1;
		build(l,m,lc);
		build(m+1,r,rc);
		pull(l,r,id);
		return;
	}
	void modify(int l,int r,int ml,int mr,int id,ld x){
		push(l,r,id);
		if(l==ml&&r==mr){
			ori[id].tag+=x;
			push(l,r,id);
			return;
		}
		int m=(l+r)>>1;
		if(mr<=m){
			modify(l,m,ml,mr,lc,x);
		}else if(m<ml){
			modify(m+1,r,ml,mr,rc,x);
		}else{
			modify(l,m,ml,m,lc,x);
			modify(m+1,r,m+1,mr,rc,x);
		}
		return;
	}
	pair<ld,int> query(int l,int r,int ql,int qr,int id){
		push(l,r,id);
		if(l==ql&&r==qr){
			return ori[id].val;
		}
		int m=(l+r)>>1;
		if(qr<=m){
			return query(l,m,ql,qr,lc);
		}else if(m<ql){
			return query(m+1,r,ql,qr,rc);
		}else{
			return max(query(l,m,ql,m,lc),query(m+1,r,m+1,qr,rc));
		}
	}
}seg;
 
ll q(){
	pair<ld,int> ans=seg.query(1,n,1,n,0);
	ll a=bit.query(ans.S);
	a*=y[ans.S];
	a%=p;
	return a;
}
 
 
 
int init(int N, int X[], int Y[]) {
	n=N;
	for(int i=0;i<n;i++){
		x[i+1]=X[i];
		y[i+1]=Y[i];
	}
	bit.init();
	for(int i=1;i<=n;i++){
		x2[i]=log2f(x[i]);
		y2[i]=log2f(y[i]);
		bit.modify(x[i],i);
	}
	ld now=0;
	for(int i=1;i<=n;i++){	
		now+=x2[i];
		u[i]=now+y2[i];
	}
	seg.build(1,n,0);
	return q();
}
 
int updateX(int pos, int val) {	
	pos+=1;
	seg.modify(1,n,pos,n,0,log2f(val)-log2f(x[pos]));
	bit.modify((pw(x[pos],p-2)*val)%p,pos);
	x[pos]=val;
	return q();
}
 
int updateY(int pos, int val) {
	pos+=1;
	seg.modify(1,n,pos,pos,0,log2f(val)-log2f(y[pos]));
	y[pos]=val;
	return q();
}

Compilation message

horses.cpp: In member function 'void BIT::modify(long long int, int)':
horses.cpp:27:17: warning: declaration of 'x' shadows a global declaration [-Wshadow]
   27 |  void modify(ll x,int pos){
      |                 ^
horses.cpp:19:4: note: shadowed declaration is here
   19 | ll x[500010],y[500010],n;
      |    ^
horses.cpp: In member function 'void SEG_TREE::modify(int, int, int, int, int, float)':
horses.cpp:83:50: warning: declaration of 'x' shadows a global declaration [-Wshadow]
   83 |  void modify(int l,int r,int ml,int mr,int id,ld x){
      |                                                  ^
horses.cpp:19:4: note: shadowed declaration is here
   19 | ll x[500010],y[500010],n;
      |    ^
horses.cpp: In function 'long long int q()':
horses.cpp:118:31: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  118 |  pair<ld,int> ans=seg.query(1,n,1,n,0);
      |                               ^
horses.cpp:118:35: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  118 |  pair<ld,int> ans=seg.query(1,n,1,n,0);
      |                                   ^
horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:135:18: warning: conversion from 'long long int' to 'float' may change value [-Wconversion]
  135 |   x2[i]=log2f(x[i]);
      |               ~~~^
horses.cpp:136:18: warning: conversion from 'long long int' to 'float' may change value [-Wconversion]
  136 |   y2[i]=log2f(y[i]);
      |               ~~~^
horses.cpp:144:14: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  144 |  seg.build(1,n,0);
      |              ^
horses.cpp:145:10: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  145 |  return q();
      |         ~^~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:150:31: warning: conversion from 'int' to 'float' may change value [-Wconversion]
  150 |  seg.modify(1,n,pos,n,0,log2f(val)-log2f(x[pos]));
      |                               ^~~
horses.cpp:150:47: warning: conversion from 'long long int' to 'float' may change value [-Wconversion]
  150 |  seg.modify(1,n,pos,n,0,log2f(val)-log2f(x[pos]));
      |                                          ~~~~~^
horses.cpp:150:15: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  150 |  seg.modify(1,n,pos,n,0,log2f(val)-log2f(x[pos]));
      |               ^
horses.cpp:150:21: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  150 |  seg.modify(1,n,pos,n,0,log2f(val)-log2f(x[pos]));
      |                     ^
horses.cpp:153:10: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  153 |  return q();
      |         ~^~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:158:33: warning: conversion from 'int' to 'float' may change value [-Wconversion]
  158 |  seg.modify(1,n,pos,pos,0,log2f(val)-log2f(y[pos]));
      |                                 ^~~
horses.cpp:158:49: warning: conversion from 'long long int' to 'float' may change value [-Wconversion]
  158 |  seg.modify(1,n,pos,pos,0,log2f(val)-log2f(y[pos]));
      |                                            ~~~~~^
horses.cpp:158:15: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  158 |  seg.modify(1,n,pos,pos,0,log2f(val)-log2f(y[pos]));
      |               ^
horses.cpp:160:10: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  160 |  return q();
      |         ~^~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 24152 KB Output is correct
2 Correct 11 ms 23900 KB Output is correct
3 Correct 10 ms 23904 KB Output is correct
4 Correct 9 ms 23900 KB Output is correct
5 Correct 10 ms 23928 KB Output is correct
6 Correct 9 ms 23900 KB Output is correct
7 Correct 10 ms 23928 KB Output is correct
8 Correct 13 ms 23944 KB Output is correct
9 Correct 10 ms 23900 KB Output is correct
10 Correct 10 ms 23900 KB Output is correct
11 Correct 9 ms 23900 KB Output is correct
12 Correct 10 ms 23900 KB Output is correct
13 Correct 9 ms 23900 KB Output is correct
14 Correct 10 ms 23912 KB Output is correct
15 Correct 9 ms 23900 KB Output is correct
16 Correct 10 ms 23856 KB Output is correct
17 Correct 10 ms 23904 KB Output is correct
18 Correct 11 ms 23904 KB Output is correct
19 Correct 9 ms 23904 KB Output is correct
20 Correct 11 ms 23964 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23868 KB Output is correct
2 Correct 10 ms 23904 KB Output is correct
3 Correct 10 ms 23900 KB Output is correct
4 Correct 9 ms 23772 KB Output is correct
5 Correct 13 ms 23900 KB Output is correct
6 Correct 10 ms 23932 KB Output is correct
7 Correct 11 ms 23900 KB Output is correct
8 Correct 10 ms 23900 KB Output is correct
9 Correct 9 ms 23900 KB Output is correct
10 Correct 9 ms 23900 KB Output is correct
11 Correct 9 ms 23900 KB Output is correct
12 Correct 9 ms 23932 KB Output is correct
13 Correct 10 ms 23900 KB Output is correct
14 Correct 10 ms 23900 KB Output is correct
15 Correct 9 ms 23900 KB Output is correct
16 Correct 10 ms 23928 KB Output is correct
17 Correct 9 ms 23900 KB Output is correct
18 Correct 9 ms 23900 KB Output is correct
19 Correct 9 ms 23940 KB Output is correct
20 Correct 8 ms 23952 KB Output is correct
21 Correct 9 ms 23896 KB Output is correct
22 Correct 9 ms 23900 KB Output is correct
23 Correct 31 ms 24032 KB Output is correct
24 Correct 31 ms 23900 KB Output is correct
25 Correct 28 ms 23900 KB Output is correct
26 Correct 33 ms 24040 KB Output is correct
27 Correct 31 ms 24156 KB Output is correct
28 Correct 34 ms 23896 KB Output is correct
29 Correct 39 ms 23900 KB Output is correct
30 Correct 34 ms 23900 KB Output is correct
31 Correct 29 ms 23896 KB Output is correct
32 Correct 29 ms 23896 KB Output is correct

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1595 ms 47556 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 23896 KB Output is correct
2 Correct 10 ms 23900 KB Output is correct
3 Correct 9 ms 23928 KB Output is correct
4 Correct 9 ms 23900 KB Output is correct
5 Correct 10 ms 23900 KB Output is correct
6 Correct 9 ms 23900 KB Output is correct
7 Correct 10 ms 23900 KB Output is correct
8 Correct 13 ms 23932 KB Output is correct
9 Correct 10 ms 24152 KB Output is correct
10 Correct 9 ms 23900 KB Output is correct
11 Correct 10 ms 23788 KB Output is correct
12 Correct 10 ms 23900 KB Output is correct
13 Correct 9 ms 23896 KB Output is correct
14 Correct 9 ms 23928 KB Output is correct
15 Correct 11 ms 23892 KB Output is correct
16 Correct 10 ms 23900 KB Output is correct
17 Correct 9 ms 23900 KB Output is correct
18 Correct 10 ms 23812 KB Output is correct
19 Correct 11 ms 23900 KB Output is correct
20 Correct 9 ms 23900 KB Output is correct
21 Correct 10 ms 23764 KB Output is correct
22 Correct 12 ms 23772 KB Output is correct
23 Correct 32 ms 23900 KB Output is correct
24 Correct 37 ms 23896 KB Output is correct
25 Correct 37 ms 23900 KB Output is correct
26 Correct 34 ms 23980 KB Output is correct
27 Correct 35 ms 23940 KB Output is correct
28 Correct 37 ms 23896 KB Output is correct
29 Correct 36 ms 23896 KB Output is correct
30 Correct 35 ms 24012 KB Output is correct
31 Correct 31 ms 23896 KB Output is correct
32 Correct 30 ms 23896 KB Output is correct
33 Execution timed out 1570 ms 49236 KB Time limit exceeded
34 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 23896 KB Output is correct
2 Correct 10 ms 23900 KB Output is correct
3 Correct 9 ms 23900 KB Output is correct
4 Correct 9 ms 23900 KB Output is correct
5 Correct 10 ms 23780 KB Output is correct
6 Correct 10 ms 23924 KB Output is correct
7 Correct 10 ms 23960 KB Output is correct
8 Correct 9 ms 23900 KB Output is correct
9 Correct 10 ms 23900 KB Output is correct
10 Correct 9 ms 23912 KB Output is correct
11 Correct 9 ms 23856 KB Output is correct
12 Correct 10 ms 23900 KB Output is correct
13 Correct 10 ms 23900 KB Output is correct
14 Correct 9 ms 23900 KB Output is correct
15 Correct 11 ms 23820 KB Output is correct
16 Correct 10 ms 23900 KB Output is correct
17 Correct 9 ms 23900 KB Output is correct
18 Correct 9 ms 23896 KB Output is correct
19 Correct 9 ms 23896 KB Output is correct
20 Correct 10 ms 23900 KB Output is correct
21 Correct 10 ms 23900 KB Output is correct
22 Correct 10 ms 23916 KB Output is correct
23 Correct 32 ms 23896 KB Output is correct
24 Correct 31 ms 23980 KB Output is correct
25 Correct 33 ms 23896 KB Output is correct
26 Correct 34 ms 23960 KB Output is correct
27 Correct 31 ms 23900 KB Output is correct
28 Correct 34 ms 24156 KB Output is correct
29 Correct 38 ms 23900 KB Output is correct
30 Correct 35 ms 24036 KB Output is correct
31 Correct 30 ms 24032 KB Output is correct
32 Correct 30 ms 24016 KB Output is correct
33 Execution timed out 1559 ms 47508 KB Time limit exceeded
34 Halted 0 ms 0 KB -