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#include<stdio.h>
/*
* Count whitespace in input
*/
main() {
int c, n_whitespace;
n_whitespace = 0;
while ((c = getchar()) != EOF) {
if (c == '\n')
++n_whitespace;
if (c == '\t')
++n_whitespace;
if (c == ' ')
++n_whitespace;
}
printf("%d\n", n_whitespace);
}
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