2 replies to this topic

[Stella Richards]

Hi,

Write code to solve the following problem. Define a function that takes a String as a parameter and returns an integer value. The function need to loop through each character in the input string to find a value of “x”. If a value of “x” is found in the string then return the position within the string where “x” is found else return -1.

[PureHeart]

Hi Stella,

Just a quick question about your problem. Is "x" a string or a character?

Hi,

Write code to solve the following problem. Define a function that takes a String as a parameter and returns an integer value. The function need to loop through each character in the input string to find a value of “x”. If a value of “x” is found in the string then return the position within the string where “x” is found else return -1.

[magiccode9]

try this code to see if it is help ~~

#include <stdio.h>

int findpos(char *str, char x);

int main(int argc, char **args)
{
[tab][/tab]char *s = "some gext";
[tab][/tab]int r;
[tab][/tab]r = findpos(s, 'g');
[tab][/tab]printf("%d\n", r);
}

int findpos(char *str, char x)
{
[tab][/tab]char *s = str;
[tab][/tab]int i = 0;

[tab][/tab]while (*s && (*s != x))
[tab][/tab]{
[tab][/tab][tab][/tab]++i; ++s;
[tab][/tab]}
[tab][/tab]return (*s) ? i : -1;
}

Edited by magiccode9, 29 May 2009 - 08:04 PM.