Submission #732167

#	Time	Username	Problem	Language	Result	Execution time	Memory
732167		josanneo22	Horses (IOI15_horses)	C++17	17 / 100	1551 ms	8156 KiB

horses

#include<bits/stdc++.h>
#include<iostream>
#include<stdlib.h>
#include<cmath>
#include <algorithm>
#include<numeric>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<pair<int, int> > vpii;
typedef pair<ll, ll> pll;
typedef vector<pll> vpll;
typedef vector<ll> vll;
#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define trav(a,x) for (auto& a: x)
#define fr(i, a, b, s) for (int i=(a); (s)>0?i<(b):i>=(b); i+=(s))
#define mp make_pair
#define pb push_back
#define sz(x) int(x.size())
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
#define in insert
#define yes cout<<"YES\n"
#define no cout<<"NO\n"
#define out(x) cout<<x<<'\n'
int dx[4] = { -1, 0, 1, 0 };
int dy[4] = { 0, 1, 0, -1 };
int dx8[8]={0,0,-1,1,-1,1,-1,1};
int dy8[8]={-1,1,0,0,-1,1,1,-1};
char buf[1<<23],*p1=buf,*p2=buf;
#define getchar() (p1==p2&&(p2=(p1=buf)+fread(buf,1,1<<21,stdin),p1==p2)?EOF:*p1++)
inline int rd()
{
	int s=0;
	char ch=getchar(),last;
	while(ch<'0'||ch>'9') last=ch,ch=getchar();
	while(ch>='0'&&ch<='9') s=(s<<1)+(s<<3)+(ch^48),ch=getchar();
	return last=='-'?-s:s;
}
int num[100];
inline void rt(int x)
{
	if(x<0) putchar('-'),x=-x;;
	int len=0;
	do num[len++]=x%10;while(x/=10);
	while(len--) putchar(num[len]+'0');
}
int add(int a, int b, int mod) { return (((a % mod) + (b % mod)) + mod) % mod; }
int sub(int a, int b, int mod) { return (((a % mod) - (b % mod)) + mod) % mod; }
int mul(int a, int b, int mod) { return (((a % mod) * (b % mod)) + mod) % mod; }
int bin(int a, int b, int mod) { int ans = 1; while (b) { if (b & 1) ans = mul(ans, a, mod); a = mul(a, a, mod); b >>= 1; }return ans; }
int inverse(int a, int mod) { return bin(a, mod - 2, mod); }
int divi(int a, int b, int mod) {
	return mul(a, inverse(b, mod), mod);
}
#include "horses.h"
int n; 
vector<int> p,y;
const int mod=1e9+7;
int solve(){
    ll ans=0,pro=1;
    FOR(i,0,n){
        pro*=p[i];
        ans=max(ans,(pro*y[i]%mod));
    }
    return (int)(ans%mod);
}
int init(int N, int X[], int Y[]) {
	n=N;
    p.resize(n);y.resize(n);
    FOR(i,0,n) p[i]=X[i];
	FOR(i,0,n) y[i]=Y[i];
    return solve();
}
int updateX(int pos, int val) {	
	p[pos]=val;
	return solve();
}
 
int updateY(int pos, int val) {
	y[pos]=val;
	return solve();
}
/*
#include <stdio.h>
#include <stdlib.h>

static char _buffer[1024];
static int _currentChar = 0;
static int _charsNumber = 0;
static FILE *_inputFile, *_outputFile;

static inline int _read() {
    if (_charsNumber < 0) {
        exit(1);
    }
    if (!_charsNumber || _currentChar == _charsNumber) {
        _charsNumber = (int)fread(_buffer, sizeof(_buffer[0]), sizeof(_buffer), _inputFile);
        _currentChar = 0;
    }
    if (_charsNumber <= 0) {
        return -1;
    }
    return _buffer[_currentChar++];
}

static inline int _readInt() {
    int c, x, s;
    c = _read();
    while (c <= 32) c = _read();
    x = 0;
    s = 1;
    if (c == '-') {
        s = -1;
        c = _read();
    }
    while (c > 32) {
        x *= 10;
        x += c - '0';
        c = _read();
    }
    if (s < 0) x = -x;
    return x;
}


int main() {
	int N;cin>>N;
	int X[N],Y[N];
	FOR(i,0,N) cin>>X[i];
	FOR(i,0,N) cin>>Y[i];
	cout<<init(N,X,Y)<<'\n';

	int M; cin>>M;

	for (int i = 0; i < M; i++) {
        int type,pos,val;
		cin>>type>>pos>>val;
		if (type == 1) {
			cout<<updateX(pos,val)<<'\n';
		} else if (type == 2) {
			cout<<updateY(pos,val)<<'\n';
		}
	}

	return 0;
}
*/

• Subtask 1: 17 / 17
• Subtask 2: 0 / 17
• Subtask 3: 0 / 20
• Subtask 4: 0 / 23
• Subtask 5: 0 / 23