Program grade (looping)

Program :

#include <iostream>

using namespace std;

int main() {

int nilai;

string grade;

cout <<"Grade";

cout <<"Calvin Jonathan Gunawan" << endl;

cout <<"20251310046" << endl;

cout <<"22/10/2025" << endl;

cout <<"Teknik Informatika A2" << endl;

do {cout << "Nilai harus antara 0 sampai 100.\n";

cout << "Masukkan nilai (0-100) :";

cin >> nilai;

if (nilai < 0 || nilai > 100){

cout << "input tidak valid" << endl;

}

} while (nilai < 0 || nilai > 100);

if (nilai >= 80) grade ="A";

else if (nilai >= 70) grade = "B";

else if (nilai >= 60) grade = "C";

else if (nilai >= 50) grade = "D";

else grade = "E";

cout <<"Nilai : " << grade << endl;

return 0;

}

Hasil Run :

Algo