Submission #348811

#	Time	Username	Problem	Language	Result	Execution time	Memory
348811		Sprdalo	Horses (IOI15_horses)	C++17	34 / 100	1591 ms	12268 KiB

horses

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pi;
typedef pair<ll, ll> pl;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<double> vd;
typedef vector<bool> vb;
typedef vector<char> vc;
typedef vector<string> vs;
typedef vector<pi> vp;
typedef vector<pl> vpl;

const int mod = 1e9 + 7;

void f(ll& x){
    if (x >= mod)
        x %= mod;
}

ll g(ll x){
    f(x);
    return x;
}

vi X, Y;
int N;

int solve(){
    ll sol = 0, maxy = 0, s = 1;
    ll cur = 1;
    for (int i = 0; i < N; ++i){
        s *= X[i];
        cur *= X[i];
        f(cur);

        if (s >= maxy){
            maxy = Y[i];
            sol = g(cur * Y[i]);
            s = 1;
            continue;
        }

        s *= Y[i];
        if (s >= maxy){
            maxy = Y[i];
            sol = g(cur * Y[i]);
            s = 1;
            continue;
        }
        s /= Y[i];
    }

    return sol;
}

int init(int n, int x[], int y[]){
    N = n;
    X = vi(n);
    Y=vi(n);
    for (int i = 0; i < n; ++i){
        X[i]=x[i];
        Y[i] = y[i];
    }

    return solve();
}

int updateX(int pos, int val){
    X[pos] = val;
    return solve();
}

int updateY(int pos, int val){
    Y[pos] = val;
    return solve();
}

int man()
{
    ios_base::sync_with_stdio(false); 
    cin.tie(nullptr); 
    cout.tie(nullptr); 
    cerr.tie(nullptr);    

    int n;
    cin >> n;

    int x[n];
    for (int i = 0; i < n; ++i)
        cin >> x[i];

    int y[n];
    for (int i = 0; i < n; ++i)
        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
            cout << updateY(pos, val) << '\n';
    }
}

Compilation message (stderr)

horses.cpp: In function 'int solve()':
horses.cpp:58:12: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   58 |     return sol;
      |            ^~~
horses.cpp: In function 'int man()':
horses.cpp:115:1: warning: no return statement in function returning non-void [-Wreturn-type]
  115 | }
      | ^

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