1:
#include<iostream>
using namespace std;
int FT(int n) {
int sun = 0;
for (int i = 1; i <= n; i++) {
sun += i;
}
return sun;
}
int main() {
int n = 3;
cout << FT(n);
return 0;
}
2:
#include<iostream>
using namespace std;
char f(char ch){
int num=ch+2;
return num;
}
int main() {
char c='m';
cout<<f(c);
return 0;
}