Logic

#include <iostream>

using namespace std;

int main(){
    int UTS, UAS, TUGAS;
    string NILAI_UTS, NILAI_UAS, NILAI_TUGAS;
    cout << "Nilai UTS : "; cin >> UTS;
    cout << "Nilai UAS : "; cin >> UAS;
    cout << "Nilai Tugas : "; cin >> TUGAS;
    if(UTS == 0 || UAS == 0 || TUGAS == 0){
        cout << "Nilai UTS : E, Nilai UAS : E, Nilai Tugas : E" << endl;
    }else{
        if(UTS >= 75 && UTS <= 100){
            NILAI_UTS = "A";
        }else if(UTS >= 60 && UTS<= 75){
            NILAI_UTS = "B";
        }else if(UTS >= 40 && UTS<= 60){
            NILAI_UTS = "C";
        }else if(UTS >= 20 && UTS<= 40){
            NILAI_UTS = "D";
        }else{
            NILAI_UTS = "E";
        }
        if(UAS >= 75 && UAS <= 100){
            NILAI_UAS = "A";
        }else if(UAS >= 60 && UAS <= 75){
            NILAI_UAS = "B";
        }else if(UAS >= 40 && UAS <= 60){
            NILAI_UAS = "C";
        }else if(UAS >= 20 && UAS <= 40){
            NILAI_UAS = "D";
        }else{
            NILAI_UAS = "E";
        }
        if(TUGAS >= 75 && TUGAS <= 100){
            NILAI_TUGAS = "A";
        }else if(TUGAS >= 60 && TUGAS <= 75){
            NILAI_TUGAS = "B";
        }else if(TUGAS >= 40 && TUGAS <= 60){
            NILAI_TUGAS = "C";
        }else if(TUGAS >= 20 && TUGAS <= 40){
            NILAI_TUGAS = "D";
        }else{
            NILAI_TUGAS = "E";
        }
        cout << "Nilai UTS : " << NILAI_UTS << ", Nilai UAS : " << NILAI_UAS << ", Nilai Tugas : " << NILAI_TUGAS << endl;
    }
    return 0;
}