so i'm beginner and i think this is weird(in if and do function) have another easy way?
sorry for my bad english
Code:
#include"stdio.h"
int main(){
int a,b,c,sum=0;
do{ printf("put A : ");
scanf("%d",&a);
}
while(a>30);
do{ printf("put B : ");
scanf("%d",&b);
}
while(b>30);
do{ printf("put C : ");
scanf("%d",&c);
}
while(c>40);
sum=a+b+c;
//printf("sum = %d",sum);
if(sum>=80){ printf("A");}
if(sum>=75&&sum<=79){ printf("B+");}
if(sum>=70&&sum<=74){ printf("B");}
if(sum>=65&&sum<=69){ printf("C+");}
if(sum>=60&&sum<=64){ printf("C");}
if(sum>=55&&sum<=59){ printf("D+");}
if(sum>=50&&sum<=54){ printf("D");}
if(sum<50){ printf("F");}
}