#include <stdio.h>
#include <string.h>
int main(void) {
int start_index = 1;
int loop_count = 6;
char inputline[] = "This is my day in 2020 1230023";
char substr[1024];
strncpy ( substr
, inputline
+ start_index
, loop_count
);
printf("%s\n", substr
); // you can use fprintf(outfile, "%s", substr); here return 0;
}
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