sirul.c: In function 'main': sirul.c:12: warning: format '%d' expects type 'int *', but argument 3 has type 'char *' sirul.c:15: warning: implicit declaration of function 'strcpy' sirul.c:15: warning: incompatible implicit declaration of built-in function 'strcpy' sirul.c:16: warning: implicit declaration of function 'strcat' sirul.c:16: warning: incompatible implicit declaration of built-in function 'strcat' sirul.c:12: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result