first program grade

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// my first program in C++ #include <iostream> int main() { std::cout << "Hello World!"; }

#include <iostream>

using namespace std;

int main()

{

int i,j;

cin>>i;

char k;

if(i<=100  && i>=90)

k='A';

if(i<90 && i>=50)

k='B';

if(i<50 && i>=30)

k='C';

if(i<30)

k='D';

cout << "\nplayer Grade  "<< k;

return 0;

}