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#include <stdio.h>
int main()
{
// no 1. menghitung luas lingkaran
float luas_lingkaran, phi = 3.14, r=7;
luas_lingkaran = phi*r*r;
printf("No 1. Menghitung Luas Lingkaran\n");
printf("Luas lingkaran: %0.2f\n", luas_lingkaran);
//
// no 2. konversi nilai
float nilai;
char huruf;
nilai = 80.9;
if(nilai>=80){
huruf = 'A';
} else if(nilai>=65){
huruf = 'B';
} else if(nilai>=55){
huruf = 'C';
} else if(nilai>=50){
huruf = 'D';
} else{
huruf = 'E';
}
printf("\nNo 2. Konversi Nilai\n");
printf("Nilai kamu: %0.2f (%c)\n", nilai, huruf);
//
// no 3. menentukan bilangan prima
int x,flag,sisa, bil=7;
flag=1;
printf("\nNo 3. Menentukan bilangan prima\n");
for(x=2;x< bil; x++){
sisa=bil%x;
if(sisa==0)
{
flag=0;
}
}
if(flag==1){
printf("Prima\n");
} else{
printf("Bukan Prima\n");
}
//
// no 4. menampilkan hore oke dengan looping
printf("\nNo 4. Menampilkan hore oke dengan looping\n");
for(int a=0; a<10; a++){
if(a%2 == 0){
printf("Hore\n");
} else{
printf("Oke\n");
}
}
}
