수들의 합

#include <iostream>
using namespace std;

int sum(){
int result;
for (int i = 0;i < 100;i++)
result += i;
return result;
}
int evenSum(){
int result1;
for (int j = 0;j < 100;j++){
if (j%2 != 0)
result1 += j;
}
return result1;
}
int oddSum(){
int result2;
for (int k = 0;k < 100;k++){
if (k % 2 == 0)
result2 += k;
}
return result2;
}
int main(){
cout << "Sum is : " << sum() << endl;
cout << "Even Sum is : " << evenSum() << endl;
cout << "Odd Sum is : " << oddSum() << endl;
system("pause");
return 0;
}