What's the problem in this code,some one clear this,using for loop

Question

#include <iostream>
using namespace std;

int main() {
int i;
cout <<"all even numbers less than 75";
for(i=0;i<=75;i+2)

cout<<i<<"\t";

return 0;
}

Answer 1

i +=2

Answer 2

Simba tnx