Submission #8,023

2024-01-12 10:37:56

cpp17

Accepted 40/40

3ms

4136 KiB

// Source: https://usaco.guide/general/io

#include <bits/stdc++.h>
using namespace std;

int INF = 1e9;

int main() {
	string n; cin >> n;





	int szamjegyossz = 0;
	int hossz = 0; 


	for (char x : n){
		szamjegyossz += x-'0';
		hossz++;
	}


	if (szamjegyossz == n[0]-'0' && n[0] != '1'){
		szamjegyossz = 1 + (hossz-1)*9 + n[0]-'0' - 1;
	}

	long long ans = szamjegyossz;
	hossz--;

	for (int i = hossz; i > 0; i--){
		ans += 9*i;
	}

	
	cout << ans;

	
	/*

	100 2 l
	99 3
	18 + 3 + 9 

	*/


}

	Sum	Test	Verdict		Time	Memory
base	40/40
		1	Accepted	0/0	3ms	1812 KiB
		2	Accepted	0/0	3ms	2200 KiB
		3	Accepted	0/0	3ms	2280 KiB
		4	Accepted	2/2	3ms	2240 KiB
		5	Accepted	2/2	3ms	2264 KiB
		6	Accepted	2/2	3ms	2464 KiB
		7	Accepted	2/2	3ms	2708 KiB
		8	Accepted	2/2	3ms	2760 KiB
		9	Accepted	2/2	3ms	2888 KiB
		10	Accepted	2/2	3ms	3104 KiB
		11	Accepted	4/4	2ms	3180 KiB
		12	Accepted	4/4	3ms	3336 KiB
		13	Accepted	2/2	3ms	3352 KiB
		14	Accepted	2/2	3ms	3420 KiB
		15	Accepted	2/2	3ms	3548 KiB
		16	Accepted	2/2	3ms	3628 KiB
		17	Accepted	2/2	3ms	3628 KiB
		18	Accepted	2/2	3ms	3696 KiB
		19	Accepted	3/3	3ms	3916 KiB
		20	Accepted	3/3	3ms	4136 KiB