Submission #6684285


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//#pragma GCC optimize("O3")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,tune=native")
//#pragma GCC optimize ("unroll-loops")
#include <bits/stdc++.h>

using namespace std;

using ll = long long;
using ld = long double;


int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    int ans = 0;
    int n;
    cin >> n;
    for (int i = 1; i <= n; i++) {
        int cnt = 0;
        int m = i;
        while (m) {
            cnt++;
            m /= 10;
        }
        if (cnt & 1) {
            ans++;
        }
    }
    cout << ans;
    return 0;
}

Submission Info

Submission Time
Task B - Uneven Numbers
User meatrow
Language C++14 (GCC 5.4.1)
Score 200
Code Size 640 Byte
Status AC
Exec Time 2 ms
Memory 256 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 200 / 200
Status
AC × 3
AC × 13
Set Name Test Cases
Sample a01, a02, a03
All a01, a02, a03, b04, b05, b06, b07, b08, b09, b10, b11, b12, b13
Case Name Status Exec Time Memory
a01 AC 1 ms 256 KB
a02 AC 1 ms 256 KB
a03 AC 2 ms 256 KB
b04 AC 1 ms 256 KB
b05 AC 1 ms 256 KB
b06 AC 1 ms 256 KB
b07 AC 1 ms 256 KB
b08 AC 1 ms 256 KB
b09 AC 1 ms 256 KB
b10 AC 1 ms 256 KB
b11 AC 1 ms 256 KB
b12 AC 2 ms 256 KB
b13 AC 2 ms 256 KB