Why does this code give me no output on code playground?

Question

#include <stdio.h>
#include <math.h>

int main() {
char *binstr="0100110";
int binlen=strlen(binstr);
int i=binlen-1;
int res=0;
while(i>=0){
res+=atoi(binstr[i])
*pow(2,binlen-1-i);
i--;
}
printf("%d",res);
return 0;
}

Answer 1

Thanks Bennett Post and Mohamed ELomari .

Answer 2

Yes Gaurav Maheshwari I have posted the new version here. https://code.sololearn.com/c5My5HO725AH/?ref=app

Pro Coder is this code good for what you asked me?

Answer 3

Yes!

Answer 4

first -> you have to include stdlib.h // atoi

second -> the type of binstr variable should be of type " char** " ( the atoi function take parameter of type "char* const" ):

https://code.sololearn.com/c3HonWjfpj8M/#c

atoi ref: https://en.cppreference.com/w/c/string/byte/atoi

Answer 5

I think for using strlen you should include the header file string.h

Answer 6

You're getting the correct amswer,i guess