제출 #1038721

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1038721		Phuoc	Baloni (COCI15_baloni)	C++14	100 / 100	42 ms	9040 KiB

baloni

#include <bits/stdc++.h>
#include <iostream>
#include <cmath>
#include <iomanip>
#include <vector>
#include <map>
#include <stack>
#include <queue>
#include <set> 

using namespace std;
 
#define ll long long
#define pb push_back
#define el '\n'
#define mpair make_pair
#define MASK(i) (1LL << (i))
#define BIT(mask, i) (((mask) >> (i)) & 1)
#define fi first
#define se second
 
/* Author: Pham Gia Phuoc */
 
const ll MOD = 998244353;
 
template <class T1, class T2>
    void add(T1 &a, T2 b){
        a += b;
        if(a >= MOD) a -= MOD;
    }
 
template <class T1, class T2>
    void sub(T1 &a, T2 b){
        a -= b;
        if(a < 0) a += MOD;
    }
 
template <class T1, class T2>
    bool minimize(T1 &a, T2 b){
        if(a > b){a = b; return true;} return false;
    }
 
template <class T1, class T2>
    bool maximize(T1 &a, T2 b){
        if(a < b){a = b; return true;} return false;
    }
 
/** END OF TEMPLATE. DRINK A CUP OF COFFEE BEFORE READING MY CODE **/
 
const int MAX = 1000010;
const ll INF = (ll) 1e18 + 67LL;
const int oo = (int)(1e9 + 7);
const int NUM_BIT = 62;

#define FOR(i, a, b) for(int i = a; i <= b; i++)
#define FORD(i, a, b) for(int i = a; i >= b; i--)

int n, h[MAX];

void init(){
    cin >> n;
    FOR(i, 1, n) cin >> h[i];
}

int cnt[MAX];

int solve(int n, int h[]){
    int ans = 0;
    FOR(i, 1, n){
        if(cnt[h[i] + 1] == 0){
           ans++;
        }
        else cnt[h[i] + 1]--;
        cnt[h[i]]++;
    }
    return ans;
}

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    #define test "test"
    // freopen(test".inp", "r", stdin);
    // freopen(test".out", "w", stdout);
    srand(time(0));
    int t = 1;
    while(t--){
        init();
        cout << solve(n, h);
    }
    
    return 0;
}


 
/*** ROAD TO VOI 2025 ***/

• Subtask 1: 100 / 100