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- #include <iostream>
- #include <vector>
- using namespace std;
- int main() {
- int a, b, k;
- cin >> a >> b >> k;
- int sum = 0;
- for(int i = a; i <= b; i++) {
- int n = i;
- int deliteli_na_n = 0;
- bool specijalen_broj = true;
- for(int j = 1; j <= n; j++) {
- if(n % j == 0) {
- deliteli_na_n++;
- }
- }
- for(int j = n - 1; j >= max(n - k, 1); j--) {
- int deliteli_na_j = 0;
- for(int l = 1; l <= j; l++) {
- if(j % l == 0) {
- deliteli_na_j++;
- }
- }
- if(deliteli_na_n <= deliteli_na_j) {
- specijalen_broj = false;
- break;
- }
- }
- if(specijalen_broj) {
- sum += i;
- }
- }
- cout << sum << endl;
- return 0;
- }
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