sort2dist.c: In function 'main': sort2dist.c:12: warning: format '%s' expects type 'char *', but argument 3 has type 'int (*)[30]' sort2dist.c:16: warning: implicit declaration of function 'strlen' sort2dist.c:16: warning: incompatible implicit declaration of built-in function 'strlen' sort2dist.c:16: warning: passing argument 1 of 'strlen' from incompatible pointer type sort2dist.c:16: note: expected 'const char *' but argument is of type 'int *' sort2dist.c:17: warning: passing argument 1 of 'strlen' from incompatible pointer type sort2dist.c:17: note: expected 'const char *' but argument is of type 'int *' sort2dist.c:18: warning: implicit declaration of function 'strcmp' sort2dist.c:27: warning: implicit declaration of function 'strcpy' sort2dist.c:27: warning: incompatible implicit declaration of built-in function 'strcpy' sort2dist.c:27: warning: passing argument 1 of 'strcpy' from incompatible pointer type sort2dist.c:27: note: expected 'char *' but argument is of type 'int *' sort2dist.c:27: warning: passing argument 2 of 'strcpy' from incompatible pointer type sort2dist.c:27: note: expected 'const char *' but argument is of type 'int *' sort2dist.c:28: warning: passing argument 1 of 'strcpy' from incompatible pointer type sort2dist.c:28: note: expected 'char *' but argument is of type 'int *' sort2dist.c:28: warning: passing argument 2 of 'strcpy' from incompatible pointer type sort2dist.c:28: note: expected 'const char *' but argument is of type 'int *' sort2dist.c:29: warning: passing argument 1 of 'strcpy' from incompatible pointer type sort2dist.c:29: note: expected 'char *' but argument is of type 'int *' sort2dist.c:29: warning: passing argument 2 of 'strcpy' from incompatible pointer type sort2dist.c:29: note: expected 'const char *' but argument is of type 'int *' sort2dist.c:8: warning: unused variable 'ch' sort2dist.c:7: warning: unused variable 'u' sort2dist.c:10: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result sort2dist.c:12: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result