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52 lines (47 loc) · 756 Bytes
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13April.cpp
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52 lines (47 loc) · 756 Bytes
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#include <iostream>
#include <vector>
using namespace std;
int divisors(int i){
int counter = 0;
for(int j = 1; j <= i; j++){
if (i%j == 0){
counter += 1;
}
}
return counter;
//if (counter == 2){
//return i;
//}
}
vector<int> divisors2(int i){
vector<int> vec;
for (int j=1; j < i; j++){
if (i%j == 0){
vec.push_back(j);
}
}
return vec;
}
int perfect(int i){
int sum = 0;
for (int j = 1;j < i; j++){
if (i%j == 0){
sum += j;
}}
return sum;
}
int main(){
int p = 100000;
//for(int i = 2;i <= p;i++){
//if (divisors(i)==2){
//cout <<i<<" ";
//}
//}
for(int i = 1;i <= p;i++){
if (perfect(i) == i){
cout <<i<<" ";
}
}
cout << "\n";
return 0;
}