Huawei OJ Platform Questions-arrays: string inversion

Source: Internet
Author: User
Tags array definition

String inversion


/* * Accept a string and then output the string after which it is reversed. */#include <stdio.h> #include <string.h>/* * string reversal function */char *revstr (char *str, int len) {    char    *start = str;    char    *end = str + len-1;    char    ch;    if (str = NULL)    {        while (Start < end)        {            ch = *start;            *start++ = *end;            *end--= ch;        }    }    return str;} int main (void) {char str[10000];//the array definition needs to be larger here, otherwise the answer on OJ is always wrong int n;         Gets (str); n = strlen (str); Revstr (Str,n); Puts (str);}

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Huawei OJ Platform Questions-arrays: string inversion

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