oj.uz

Submission #30831

# Submission time Handle Problem Language Result Execution time Memory
30831 2017-07-27T10:20:19 Z inqr Horses (IOI15_horses) C++14
100 / 100
 1263 ms 76264 KB 
#include "horses.h"
#include <bits/stdc++.h>
#define pb push_back
#define mp make_pair
#define rt insert
#define st first
#define nd second
#define ll long long
#define pii pair < int , int >
#define DB printf("debug\n");
#define umax( x , y ) x = max( x , (y) )
#define umin( x , y ) x = min( x , (y) )
#define all(x) x.begin() , x.end()
#define MAXN 500005
#define MOD (ll)1000000007
using namespace std;
int n;
ll x[MAXN],y[MAXN];
pair<double,ll> st[4*MAXN];
pair<double,ll> lz[4*MAXN];

pair<double,ll> merge(pair<double,ll> a,pair<double,ll> b){
	return {a.st+b.st,(a.nd*b.nd+MOD)%MOD};
}

void lz_upd(int l,int r,int stp){
	st[stp]=merge(st[stp],lz[stp]);
	if(l!=r){
		lz[stp*2]=merge(lz[stp*2],lz[stp]);
		lz[stp*2+1]=merge(lz[stp*2+1],lz[stp]);
	}
	lz[stp]={0,1};
}

void upd(int ul,int ur,double uv1,ll uv2,int l,int r,int stp){
	lz_upd(l,r,stp);
	if(l>r||ur<l||r<ul)return;
	if(ul<=l&&r<=ur){
		lz[stp]={uv1,uv2};
		lz_upd(l,r,stp);
		return;
	}
	int m=(l+r)/2;
	upd(ul,ur,uv1,uv2,l,m,stp*2);upd(ul,ur,uv1,uv2,m+1,r,stp*2+1);
	st[stp]=max(st[stp*2],st[stp*2+1]);
}

void build(int l,int r,int stp){
	if(l>r)return;
	if(l==r){
		st[stp]=lz[stp]={0,1};
		return;
	}
	st[stp]=lz[stp]={0,1};
	int m=(l+r)/2;
	build(l,m,stp*2);build(m+1,r,stp*2+1);
}
ll invert(ll base){
	ll res=1;
	ll exp=MOD-2;
	while(exp>0){
		if(exp&1){
			res*=base;
			res%=MOD;
		}
		base*=base;
		base%=MOD;
		exp/=2;
	}
	return res;
}
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(0,n-1,1);
	for(int i=0;i<n;i++){
		upd(i,n-1,(double)log2(x[i]),x[i],0,n-1,1);
		upd(i,i,(double)log2(y[i]),y[i],0,n-1,1);
	}
	return st[1].nd;
}
int updateX(int pos, int val){	
	upd(pos,n-1,-(double)log2(x[pos]),invert(x[pos]),0,n-1,1);
	x[pos]=val;
	upd(pos,n-1,(double)log2(x[pos]),x[pos],0,n-1,1);
	return st[1].nd;
}
int updateY(int pos, int val) {
	upd(pos,pos,-(double)log2(y[pos]),invert(y[pos]),0,n-1,1);
	y[pos]=val;
	upd(pos,pos,(double)log2(y[pos]),y[pos],0,n-1,1);
	return st[1].nd;
}

Compilation message

horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:7:12: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
 #define nd second
            ^
horses.cpp:80:15: note: in expansion of macro 'nd'
  return st[1].nd;
               ^
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:7:12: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
 #define nd second
            ^
horses.cpp:86:15: note: in expansion of macro 'nd'
  return st[1].nd;
               ^
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:7:12: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
 #define nd second
            ^
horses.cpp:92:15: note: in expansion of macro 'nd'
  return st[1].nd;
               ^

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 72352 KB Output is correct
2 Correct 0 ms 72352 KB Output is correct
3 Correct 0 ms 72352 KB Output is correct
4 Correct 0 ms 72352 KB Output is correct
5 Correct 0 ms 72352 KB Output is correct
6 Correct 0 ms 72352 KB Output is correct
7 Correct 0 ms 72352 KB Output is correct
8 Correct 0 ms 72352 KB Output is correct
9 Correct 0 ms 72352 KB Output is correct
10 Correct 0 ms 72352 KB Output is correct
11 Correct 0 ms 72352 KB Output is correct
12 Correct 0 ms 72352 KB Output is correct
13 Correct 0 ms 72352 KB Output is correct
14 Correct 0 ms 72352 KB Output is correct
15 Correct 0 ms 72352 KB Output is correct
16 Correct 0 ms 72352 KB Output is correct
17 Correct 0 ms 72352 KB Output is correct
18 Correct 0 ms 72352 KB Output is correct
19 Correct 0 ms 72352 KB Output is correct
20 Correct 0 ms 72352 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 72352 KB Output is correct
2 Correct 0 ms 72352 KB Output is correct
3 Correct 0 ms 72352 KB Output is correct
4 Correct 0 ms 72352 KB Output is correct
5 Correct 0 ms 72352 KB Output is correct
6 Correct 0 ms 72352 KB Output is correct
7 Correct 0 ms 72352 KB Output is correct
8 Correct 0 ms 72352 KB Output is correct
9 Correct 0 ms 72352 KB Output is correct
10 Correct 0 ms 72352 KB Output is correct
11 Correct 0 ms 72352 KB Output is correct
12 Correct 0 ms 72352 KB Output is correct
13 Correct 0 ms 72352 KB Output is correct
14 Correct 0 ms 72352 KB Output is correct
15 Correct 0 ms 72352 KB Output is correct
16 Correct 0 ms 72352 KB Output is correct
17 Correct 0 ms 72352 KB Output is correct
18 Correct 0 ms 72352 KB Output is correct
19 Correct 0 ms 72352 KB Output is correct
20 Correct 0 ms 72352 KB Output is correct
21 Correct 0 ms 72352 KB Output is correct
22 Correct 0 ms 72352 KB Output is correct
23 Correct 0 ms 72352 KB Output is correct
24 Correct 0 ms 72352 KB Output is correct
25 Correct 0 ms 72352 KB Output is correct
26 Correct 0 ms 72352 KB Output is correct
27 Correct 0 ms 72352 KB Output is correct
28 Correct 0 ms 72352 KB Output is correct
29 Correct 0 ms 72352 KB Output is correct
30 Correct 0 ms 72352 KB Output is correct
31 Correct 0 ms 72352 KB Output is correct
32 Correct 0 ms 72352 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1049 ms 76264 KB Output is correct
2 Correct 1226 ms 76264 KB Output is correct
3 Correct 1143 ms 76264 KB Output is correct
4 Correct 1163 ms 76264 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 72352 KB Output is correct
2 Correct 0 ms 72352 KB Output is correct
3 Correct 0 ms 72352 KB Output is correct
4 Correct 0 ms 72352 KB Output is correct
5 Correct 0 ms 72352 KB Output is correct
6 Correct 0 ms 72352 KB Output is correct
7 Correct 0 ms 72352 KB Output is correct
8 Correct 0 ms 72352 KB Output is correct
9 Correct 0 ms 72352 KB Output is correct
10 Correct 0 ms 72352 KB Output is correct
11 Correct 0 ms 72352 KB Output is correct
12 Correct 0 ms 72352 KB Output is correct
13 Correct 0 ms 72352 KB Output is correct
14 Correct 0 ms 72352 KB Output is correct
15 Correct 0 ms 72352 KB Output is correct
16 Correct 0 ms 72352 KB Output is correct
17 Correct 0 ms 72352 KB Output is correct
18 Correct 0 ms 72352 KB Output is correct
19 Correct 0 ms 72352 KB Output is correct
20 Correct 0 ms 72352 KB Output is correct
21 Correct 0 ms 72352 KB Output is correct
22 Correct 0 ms 72352 KB Output is correct
23 Correct 0 ms 72352 KB Output is correct
24 Correct 0 ms 72352 KB Output is correct
25 Correct 0 ms 72352 KB Output is correct
26 Correct 0 ms 72352 KB Output is correct
27 Correct 0 ms 72352 KB Output is correct
28 Correct 0 ms 72352 KB Output is correct
29 Correct 0 ms 72352 KB Output is correct
30 Correct 0 ms 72352 KB Output is correct
31 Correct 3 ms 72352 KB Output is correct
32 Correct 0 ms 72352 KB Output is correct
33 Correct 943 ms 76264 KB Output is correct
34 Correct 833 ms 76264 KB Output is correct
35 Correct 933 ms 76264 KB Output is correct
36 Correct 846 ms 76264 KB Output is correct
37 Correct 903 ms 76264 KB Output is correct
38 Correct 876 ms 76264 KB Output is correct
39 Correct 843 ms 76264 KB Output is correct
40 Correct 866 ms 76264 KB Output is correct
41 Correct 853 ms 76264 KB Output is correct
42 Correct 823 ms 76264 KB Output is correct
43 Correct 819 ms 76264 KB Output is correct
44 Correct 809 ms 76264 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 72352 KB Output is correct
2 Correct 0 ms 72352 KB Output is correct
3 Correct 0 ms 72352 KB Output is correct
4 Correct 0 ms 72352 KB Output is correct
5 Correct 0 ms 72352 KB Output is correct
6 Correct 0 ms 72352 KB Output is correct
7 Correct 0 ms 72352 KB Output is correct
8 Correct 0 ms 72352 KB Output is correct
9 Correct 0 ms 72352 KB Output is correct
10 Correct 0 ms 72352 KB Output is correct
11 Correct 0 ms 72352 KB Output is correct
12 Correct 0 ms 72352 KB Output is correct
13 Correct 0 ms 72352 KB Output is correct
14 Correct 0 ms 72352 KB Output is correct
15 Correct 0 ms 72352 KB Output is correct
16 Correct 0 ms 72352 KB Output is correct
17 Correct 0 ms 72352 KB Output is correct
18 Correct 0 ms 72352 KB Output is correct
19 Correct 0 ms 72352 KB Output is correct
20 Correct 0 ms 72352 KB Output is correct
21 Correct 0 ms 72352 KB Output is correct
22 Correct 0 ms 72352 KB Output is correct
23 Correct 0 ms 72352 KB Output is correct
24 Correct 0 ms 72352 KB Output is correct
25 Correct 0 ms 72352 KB Output is correct
26 Correct 0 ms 72352 KB Output is correct
27 Correct 0 ms 72352 KB Output is correct
28 Correct 3 ms 72352 KB Output is correct
29 Correct 3 ms 72352 KB Output is correct
30 Correct 3 ms 72352 KB Output is correct
31 Correct 0 ms 72352 KB Output is correct
32 Correct 0 ms 72352 KB Output is correct
33 Correct 1086 ms 76264 KB Output is correct
34 Correct 1216 ms 76264 KB Output is correct
35 Correct 1143 ms 76264 KB Output is correct
36 Correct 1069 ms 76264 KB Output is correct
37 Correct 823 ms 76264 KB Output is correct
38 Correct 856 ms 76264 KB Output is correct
39 Correct 786 ms 76264 KB Output is correct
40 Correct 856 ms 76264 KB Output is correct
41 Correct 856 ms 76264 KB Output is correct
42 Correct 839 ms 76264 KB Output is correct
43 Correct 873 ms 76264 KB Output is correct
44 Correct 869 ms 76264 KB Output is correct
45 Correct 826 ms 76264 KB Output is correct
46 Correct 829 ms 76264 KB Output is correct
47 Correct 769 ms 76264 KB Output is correct
48 Correct 866 ms 76264 KB Output is correct
49 Correct 1263 ms 76264 KB Output is correct
50 Correct 1256 ms 76264 KB Output is correct
51 Correct 1079 ms 76264 KB Output is correct
52 Correct 1012 ms 76264 KB Output is correct
53 Correct 1196 ms 76264 KB Output is correct
54 Correct 1143 ms 76264 KB Output is correct
55 Correct 936 ms 76264 KB Output is correct
56 Correct 963 ms 76264 KB Output is correct
57 Correct 943 ms 76264 KB Output is correct
58 Correct 946 ms 76264 KB Output is correct
59 Correct 866 ms 76264 KB Output is correct