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- #include <stdio.h>
- int strlen(char *a)
- {
- int i=0;
- while(*(a+i) != '\0')
- {
- i++;
- }
- return i;
- }
- int main() {
- char a[256];
- gets(a);
- printf("%d",strlen(a));
- return 0;
- }
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