Submission #87069

#	Time	Username	Problem	Language	Result	Execution time	Memory
87069		dimash241	Money (IZhO17_money)	C++17	0 / 100	2 ms	256 KiB

money

# include <stdio.h>
# include <bits/stdc++.h>


#define _USE_MATH_DEFINES_
#define ll long long
#define ld long double
#define Accepted 0
#define pb push_back
#define mp make_pair
#define sz(x) (int)(x.size())
#define every(x) x.begin(),x.end()
#define F first
#define S second
#define For(i,x,y)  for (ll i = x; i <= y; i ++) 
#define FOr(i,x,y)  for (ll i = x; i >= y; i --)
#define SpeedForce ios_base::sync_with_stdio(0), cin.tie(0)
// ROAD to...                                                                                                                                                                                                                Red

using namespace std;

inline bool isvowel (char c) {
	c = tolower(c);
    if (c == 'a' || c == 'e' || c == 'i' || c == 'y' || c == 'o' || c == 'u') return 1;
    return 0;
}

const double eps = 0.000001;
const ld pi = acos(-1);
const int maxn = 1e7 + 9;
const int mod = 1e9 + 7;
const ll MOD = 1e18 + 9;
const ll INF = 1e18 + 123;
const int inf = 2e9 + 11;
const int mxn = 1e6 + 9;
const int N = 6e5 + 123;                                          
const int M = 22;
const int pri = 997;
const int Magic = 2101;

const int dx[] = {-1, 0, 1, 0};
const int dy[] = {0, -1, 0, 1};
 
int n, cur, ans;
int a[N];

int main () {
	freopen("money.in", "r", stdin);
	freopen("money.out", "w", stdout);             
    cin >> n;
    For (i, 1, n ) {
    	cin >> a[i];
    }

    set < int > st;
    st.insert(inf);
    For (i, 1, n) {
    	st.insert(a[i]);
    	cur = *st.upper_bound(a[i]);
    	ans ++;
    	while (i + 1 <= n && a[i] <= a[i + 1] && a[i + 1] <= cur) {
        	i ++; 	
        }
    }

    cout << ans;

    return Accepted;
}

// Coded By OB

Compilation message (stderr)

money.cpp: In function 'int main()':
money.cpp:48:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
  freopen("money.in", "r", stdin);
  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
money.cpp:49:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
  freopen("money.out", "w", stdout);             
  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 16
• Subtask 3: 0 / 20
• Subtask 4: 0 / 55