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#include <stdio.h>
#include <stdlib.h>
int
main (int argc, char **argv) {
if (argc < 2) {
fprintf(stderr, "usage: %s datafile\n", argv[0]);
return 1;
}
FILE *fd = fopen(argv[1], "r");
if (fd == NULL) {
perror(argv[1]);
return 1;
}
int i = 0;
int prev = 0;
int numlarger = 0;
char *buf = NULL;
size_t buflen = 0;
while (getline(&buf, &buflen, fd) != -1) {
if (++i == 1)
continue;
int l = 0;
l = atoi(buf);
if (l == 0) {
fprintf(stderr, "error parsing line %d '%s'\n", i, buf);
continue;
}
if (l > prev)
numlarger++;
prev = l;
}
free(buf);
if (fclose(fd) == EOF) {
perror("fclose");
}
printf("of %d lines, %d are greater\n", i, numlarger);
return 0;
}
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