Thread: Help Have no idea with this proplem

Hello Please Help me with this proplem

i know how to make the input and use loop to ask user to input
50 grade
but
how can i count the number of the student that grade more than 85
and the student that grade more than 75


write a program that reads in the grades of 50 students in a course (out of 100 points each ) and then count the number of A students ( grade > 85 ) and the number of B students (grade > 75 ).


Thank You

What have you tried?

Code:

#include<stdio.h>

int main()

{
    double G;
    printf("Please Input your Grade:> ");

    scanf("%lf",&G);
    if(G>85){printf("A");}
    else if (G>75){printf("B");}

    return 0;

}

can i make this code as function

and make loop with it but also how can i count the student that grade more than 85 and more than 75 ??

i know this is normal proplem but i have no idea about count the student

hey i have this idea i will make normal code
user will input grade and if it is more than 75 i will use GOTO and +1 to var the same thing for more than 85 and after the code will add 1 to the var will use another GOTO the code that will ask user for input and loop all that 50 time
then i print the var1 and var2 that +1
but i think this is playing not programming
not good algorithm also the code must be fast and small

Originally Posted by tost

can i make this code as function

It is already a function, named main().

You can use another name and call it inside main ...

Code:

int anothername() { /* your code */ }

int main() { othername(); }

yes thank you i was mean i will make it func with another name to make new main cause i cannot make more than 1 main
but please help me i cannot write this program

yes mr.Salem i did i red this topic last week
but i realy cannot answer this proplem so please help me

Thank you

yea you know when you i saw how about you say i got jerk hahaha that's easy if the condition true i wil add 1 to var
then i print the var that will be have the number of every time the condition was true i got it thank you

and i knew why i was not able to write it
proplem was how can i make var that count the number of the student in every condition so i Used Goto to make it got to var and +1 then i print it
it was long way bad too

then you told me to put the +1 but short way

sorry for bad english
thanks again

your code is already asking for an input, so put a for loop around it

Code:

for(....)
{  YOUR CODE
}

then you are asking how to count something. that is pretty easy. Just use an IF and then put the appropriate condition (inside the loop of course)

Code:

if(condition) counter++

and forget all about the GOTO nonsense. learn the mantra. You should not use goto in C. You dont need it. (said in a Jedi voice :P )

thank you KansaiRobot

Code:

#include<stdio.h>
int main()
{
int count =0;
int A=0,B=0,C=0,D=0;
char into;
printf(" A for mathematics\n B for ecnomics\n C for programming\n D for physics\n");
while(count<=20)
{
printf(" what is your favorite subject\n");
scanf("%c",&into);
if(into =='A'){A+=1;}
else if (into == 'B'){B+=1;}
else if (into =='C'){C+=1;}
else if (into =='D'){D+=1;}

count++;
}
printf("Number of people who chose A answer =%d\n",A);
printf("Number of people who chose B answer =%d\n",B);
printf("Number of people who chose C answer =%d\n",C);
printf("Number of people who chose D answer =%d\n",D);

return 0;

}

Where is the error in this code whene i run it
it print every thing 2 times Why

okay but what must i do