Compilare: user.c: In function ‘main’: user.c:70:9: warning: format ‘%s’ expects argument of type ‘char *’, but argument 3 has type ‘char (*)[30]’ [-Wformat=] fscanf(f,"%s",&sir); ^ user.c:77:17: warning: implicit declaration of function ‘isdigit’ [-Wimplicit-function-declaration] while(isdigit(sir[j])) ^ user.c:52:23: warning: unused variable ‘mod’ [-Wunused-variable] int n,i,parse,x,j,mod=1,y,stiva,auxiliar,mutare,aux; ^ user.c: In function ‘pop’: user.c:45:5: warning: control reaches end of non-void function [-Wreturn-type] } //sf pop_back ^ user.c: In function ‘main’: user.c:62:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.c:70:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s",&sir); ^ user.c: In function ‘push’: user.c:12:19: warning: array subscript is above array bounds [-Warray-bounds] {++top[2]; ^ user.c:12:19: warning: array subscript is above array bounds [-Warray-bounds] user.c: In function ‘pop’: user.c:35:27: warning: array subscript is above array bounds [-Warray-bounds] if(top[2]==-1) ^ user.c:39:18: warning: array subscript is above array bounds [-Warray-bounds] --top[2]; ^ user.c: In function ‘main’: user.c:56:8: warning: array subscript is above array bounds [-Warray-bounds] top[2]=-1; ^ user.c:12:19: warning: array subscript is above array bounds [-Warray-bounds] {++top[2]; ^ user.c:12:19: warning: array subscript is above array bounds [-Warray-bounds] user.c:12:19: warning: array subscript is above array bounds [-Warray-bounds] {++top[2]; ^ user.c:12:19: warning: array subscript is above array bounds [-Warray-bounds] user.c:12:19: warning: array subscript is above array bounds [-Warray-bounds] {++top[2]; ^ user.c:12:19: warning: array subscript is above array bounds [-Warray-bounds] user.c:12:19: warning: array subscript is above array bounds [-Warray-bounds]