Kyselyt

input/code.cpp: In function 'int main()':
input/code.cpp:18:6: warning: 'inputDigits' may be used uninitialized in this function [-Wmaybe-uninitialized]
  ull inputDigits;
      ^

#include <iostream>
#include <math.h> 
using namespace std;
typedef unsigned long long int ull;
 
ull power(ull b, ull e) {
	ull result = 1;
	for (ull i = 0; i < e; ++i) {
		result *= b;
	}
	return (result);
}
 
int main() {
	ull in[1002];
	ull digitSum[18];
	ull inputLen;
	ull inputDigits;
	ull numWithAns;
	ull index;
	digitSum[0] = 0;
	cin>>inputLen;
	for(ull i = 1; i < 18; i++) {
		digitSum[i] = digitSum[i-1] + (i*9*power(10, i-1));
	}
	for(ull i = 0; i < inputLen; i++) {
		cin>>in[i];
		for(ull j = 1; j < 18; j++) {
			if(in[i]<=digitSum[j] && in[i]>digitSum[j-1]) {
				inputDigits = j;
				break;
			}
		}
		numWithAns = ceil((in[i]-digitSum[inputDigits-1])/(double)inputDigits)+pow(10, (double)inputDigits-1)-1;
		index = (digitSum[inputDigits]-in[i])%inputDigits;
		cout<<numWithAns%power(10,index+1)/power(10,index)<<"\n";
	}
	return 0;
}

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 2

Verdict: ACCEPTED

Test 3

Group: 3

Verdict: WRONG ANSWER