Submission #6687075


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#include <iostream>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <utility>
#include <algorithm>
#include <numeric>
#include <string>

using namespace std;
using ll = long long int;

#define rep(i, v) for(ll i = 0; i < (v); ++i)

int num(ll n){
    int i = 0;
    while(true){
        if(!n) break;
        i++;
        n /= 10;
    }
    return i;
}

int main(){
    ll N;
    cin >> N;

    ll count = 0;
    for(ll i = 0; i <= N; ++i){
        if(num(i) % 2 == 1) count++;
    }
    cout << count << endl;
}

Submission Info

Submission Time
Task B - Uneven Numbers
User acuve
Language C++14 (GCC 5.4.1)
Score 200
Code Size 574 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