#include <iostream>
#include <cstdlib>
#include <cstdio>
using namespace std;

#define jm 2

char nilai_huruf;

struct mahasiswa{
    char nim[jm][10]; //array 2d karena membutuhkan [banyaknya] [jumlah karakter]
    char nama[jm][30];
    char kelas[jm][20];
    char jurusan[jm][20];
}mhs;

struct nilai{
    int nilai_tgs[jm];
    int nilai_kuis[jm];
    int nilai_mid[jm];
    int nilai_uas[jm];
    int nilai_akhir[jm];
}nl;

void huruf(int i){
    if(nl.nilai_akhir[i]>80){
        nilai_huruf='A';
    } else if(nl.nilai_akhir[i]>60 && nl.nilai_akhir[i]<=80){
        nilai_huruf='B';
    } else if(nl.nilai_akhir[i]>40 && nl.nilai_akhir[i]<=60){
        nilai_huruf='C';
    } else if(nl.nilai_akhir[i]>=20 && nl.nilai_akhir[i]<=40) {
        nilai_huruf='D';
    } else{
        nilai_huruf='E';
    }
}

int main() {
    struct mahasiswa mhs;
    struct nilai nl;

    cout << "-=Data Nilai Struktur Data=-" << endl;
    cout <<" ----------------------------" << endl << endl;

    for (int i=1;i<=jm;i++) { //menggunakan perulangan karena input beberapa mahasiswa
        cout << "Input Mahasiswa Ke " << i << endl;
        cout <<" ----------------------------" << endl;
        cout << "Input NIM = ";          cin >> mhs.nim[i];

        cout << "Input Nama = ";         gets(mhs.nama[i]);
        cout << "Input Kelas = ";        gets(mhs.kelas[i]);
        cout << "Input Jurusan = ";      cin >> mhs.jurusan[i];
        cout << endl;

        cout<<"Masukkan Nilai Tugas = "; cin>>nl.nilai_tgs[i];
        cout<<"Masukkan Nilai Kuis = ";  cin>>nl.nilai_kuis[i];
        cout<<"Masukkan Nilai Mid = ";   cin>>nl.nilai_mid[i];
        cout<<"Masukkan Nilai UAS = ";   cin>>nl.nilai_uas[i];
        cout<<endl;

        nl.nilai_akhir[i]=(nl.nilai_tgs[i]*20/100)+(nl.nilai_kuis[i]*20/100)+(nl.nilai_mid[i]*30/100)+(nl.nilai_uas[i]*30/100); //di ringkas untuk menghemat variable
        cout << "Nilai Akhir Anda = " <<nl.nilai_akhir[i]<< endl;
        huruf(i);
        cout << "Nilai Huruf Anda = "<<nilai_huruf;
        cout << endl;
    }
}