A set of simple programs that perform mathematical operations on their arguments
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shellmath/mean.c

18 lines
324 B

#include <stdio.h>
int main(int argc, char **argv) {
int buf;
int acc;
int err;
for(int i=1;i<argc;i++) {
err=sscanf(argv[i], "%i", &buf);
if(err!=1) {
fprintf(stderr, "%s: arg #%d not an integer.\n",*argv,i);
return 1;
}
acc+=buf;
}
acc/=argc-1;
printf("%d\n",acc);
return 0;
}