Question

In C language, how to remove duplicate '*' ? 
to make “**hello2019***happy1314**newyear****is*fun****” become 
“hello2019*happy1314*newyear*is*fun”.

Answer 1

#include <stdio.h>

int main() {
    char str[] = "**hello2019***happy1314**newyear****is*fun****";
    char result[1000];
    int i = 0, size = 0;
    while (str[i]) {
        if (str[i] != '*' || (str[i+1] != '*' && str[i+1] != '\0')) {
            if (str[i] != '*' || size != 0)
                result[size++] = str[i];
        }
        i++;
    }
    result[size] = '\0';
    printf("%s\n", result);
    return 0;
}

hello2 019*happy1314" newyear*is* fun Process finished with exit code 0