Sword refers to the offer series source code-replace space

Topic 1510: Replacement Space time limit: 1 seconds Memory limit: 128 Mega Special: No submission: 7383 Resolution: 1889 Title Description: Implement a function that replaces a space in a string with "%20". For example, when the string is we are Happy. The string after substitution is we%20are%20happy. Input: Each input file contains only one set of sample test specimens. For each set of test cases, the input line represents the string to be processed. Output: Corresponds to each test case, out of the processed string. Sample input: We are happy sample output: We%20are%20happy

#include <iostream> #include <stdio.h> #include <string.h>using namespace Std;int main () {    Char STR[1000000];    Gets (str);    int n = strlen (str);    int blanknum = 0;    for (int i=0;i<n;i++) {        if (' ==str[i]) {            blanknum++;        }    }    int indexnew = n+blanknum*2;//a space increment of 2 characters    //from the back to replace the for    (int i=n;i>=0;i--) {        if (str[i]== ') {            str[indexnew--] = ' 0 ';            str[indexnew--] = ' 2 ';            str[indexnew--] = '% ';        } else{            str[indexnew--]=str[i];        }    }    printf ("%s", str);    return 0;}

Sword refers to the offer series source code-replace space