Submission #1013632

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1013632	2024-07-03T17:53:33 Z	Mardonbekhazratov	Horses (IOI15_horses)	C++17	34 / 100	1500 ms	27076 KB

horses

#include "horses.h"
#include<algorithm>
#include<vector>
#include<iostream>
const __int128_t INFLL=1e18;
const int INF=1e9;
const int MOD=1e9+7;

using namespace std;

int n;
vector<int>x,y;

int inv(int x){
	return x>1 ? MOD-(long long)(MOD/x)*inv(MOD%x)%MOD : x;
}

long long pref;

int get(){
	vector<__int128_t>suff(n+2);
	suff[n]=1;
	long long pr=pref;
	for(int i=n-1;i>=0;i--){
		suff[i]=max(suff[i+1]*x[i],suff[n]*x[i]*y[i]);
		pr=pr*inv(x[i])%MOD;
		if(suff[i]>=INFLL){
			long long ans=suff[i]%MOD;
			return pr*ans%MOD;
		}
	}
	return suff[0]%MOD;
}

int init(int N, int X[], int Y[]) {
	n=N;
	pref=1;
	x.resize(n);
	y.resize(n);
	for(int i=0;i<n;i++) x[i]=X[i],y[i]=Y[i],pref=pref*x[i]%MOD;
	return get();
}


int updateX(int pos, int val) {	
	pref=pref*inv(x[pos])%MOD*val%MOD;
	x[pos]=val;
	return get();
}

int updateY(int pos, int val) {
	y[pos]=val;
	return get();
}

Compilation message

horses.cpp: In function 'int inv(int)':
horses.cpp:14:13: warning: declaration of 'x' shadows a global declaration [-Wshadow]
   14 | int inv(int x){
      |         ~~~~^
horses.cpp:12:12: note: shadowed declaration is here
   12 | vector<int>x,y;
      |            ^
horses.cpp:15:13: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   15 |  return x>1 ? MOD-(long long)(MOD/x)*inv(MOD%x)%MOD : x;
      |         ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
horses.cpp: In function 'int get()':
horses.cpp:28:25: warning: conversion from '__gnu_cxx::__alloc_traits<std::allocator<__int128>, __int128>::value_type' {aka '__int128'} to 'long long int' may change value [-Wconversion]
   28 |    long long ans=suff[i]%MOD;
horses.cpp:29:17: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   29 |    return pr*ans%MOD;
      |           ~~~~~~^~~~
horses.cpp:32:16: warning: conversion from '__gnu_cxx::__alloc_traits<std::allocator<__int128>, __int128>::value_type' {aka '__int128'} to 'int' may change value [-Wconversion]
   32 |  return suff[0]%MOD;

Subtask #1
17.0 / 17.0

#	Verdict	Memory	Grader output
1	Correct	348 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	348 KB	Output is correct
4	Correct	348 KB	Output is correct
5	Correct	348 KB	Output is correct
6	Correct	348 KB	Output is correct
7	Correct	348 KB	Output is correct
8	Correct	348 KB	Output is correct
9	Correct	348 KB	Output is correct
10	Correct	348 KB	Output is correct
11	Correct	348 KB	Output is correct
12	Correct	348 KB	Output is correct
13	Correct	348 KB	Output is correct
14	Correct	348 KB	Output is correct
15	Correct	348 KB	Output is correct
16	Correct	348 KB	Output is correct
17	Correct	348 KB	Output is correct
18	Correct	348 KB	Output is correct
19	Correct	432 KB	Output is correct
20	Correct	348 KB	Output is correct

Subtask #2
17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	436 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	344 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	1 ms	604 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	2 ms	348 KB	Output is correct
24	Correct	1 ms	448 KB	Output is correct
25	Correct	1 ms	344 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	4 ms	448 KB	Output is correct
28	Correct	2 ms	448 KB	Output is correct
29	Correct	6 ms	444 KB	Output is correct
30	Correct	3 ms	348 KB	Output is correct
31	Correct	6 ms	348 KB	Output is correct
32	Correct	6 ms	348 KB	Output is correct

Subtask #3
0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	1587 ms	17372 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #4
0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	436 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	604 KB	Output is correct
9	Correct	0 ms	344 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	1 ms	432 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	344 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	344 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	4 ms	348 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	7 ms	348 KB	Output is correct
30	Correct	3 ms	348 KB	Output is correct
31	Correct	6 ms	348 KB	Output is correct
32	Correct	6 ms	344 KB	Output is correct
33	Correct	1419 ms	20032 KB	Output is correct
34	Correct	1355 ms	20336 KB	Output is correct
35	Correct	1357 ms	27076 KB	Output is correct
36	Correct	1335 ms	26860 KB	Output is correct
37	Execution timed out	1566 ms	18132 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	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	0 ms	344 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	3 ms	344 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	6 ms	444 KB	Output is correct
30	Correct	3 ms	348 KB	Output is correct
31	Correct	6 ms	348 KB	Output is correct
32	Correct	6 ms	348 KB	Output is correct
33	Execution timed out	1593 ms	18364 KB	Time limit exceeded
34	Halted	0 ms	0 KB	-

Submission #1013632

Compilation message

Subtask #1 17.0 / 17.0

Subtask #2 17.0 / 17.0

Subtask #3 0 / 20.0

Subtask #4 0 / 23.0

Subtask #5 0 / 23.0

Subtask #1
17.0 / 17.0

Subtask #2
17.0 / 17.0

Subtask #3
0 / 20.0

Subtask #4
0 / 23.0

Subtask #5
0 / 23.0