Compilare: main.c: In function 'main': main.c:49:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 49 | for(i=0;i<n;i++); | ^~~ main.c:50:5: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 50 | { | ^ main.c:51:16: warning: passing argument 1 of 'fscanf' from incompatible pointer type [-Wincompatible-pointer-types] 51 | fscanf("%d", &a, &b); | ^~~~ | | | char * In file included from main.c:1: /usr/include/stdio.h:415:37: note: expected 'FILE * restrict' but argument is of type 'char *' 415 | extern int fscanf (FILE *__restrict __stream, | ~~~~~~~~~~~~~~~~~^~~~~~~~ main.c:51:22: warning: passing argument 2 of 'fscanf' from incompatible pointer type [-Wincompatible-pointer-types] 51 | fscanf("%d", &a, &b); | ^~ | | | int * /usr/include/stdio.h:416:43: note: expected 'const char * restrict' but argument is of type 'int *' 416 | const char *__restrict __format, ...) __wur; | ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~ main.c:52:17: warning: passing argument 1 of 'fprintf' from incompatible pointer type [-Wincompatible-pointer-types] 52 | fprintf("%d\n", cmmdc(a,b)); | ^~~~~~ | | | char * /usr/include/stdio.h:350:38: note: expected 'FILE * restrict' but argument is of type 'char *' 350 | extern int fprintf (FILE *__restrict __stream, | ~~~~~~~~~~~~~~~~~^~~~~~~~ main.c:52:25: warning: passing argument 2 of 'fprintf' makes pointer from integer without a cast [-Wint-conversion] 52 | fprintf("%d\n", cmmdc(a,b)); | ^~~~~~~~~~ | | | int /usr/include/stdio.h:351:44: note: expected 'const char * restrict' but argument is of type 'int' 351 | const char *__restrict __format, ...); | ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~ main.c:45:13: warning: variable 'w' set but not used [-Wunused-but-set-variable] 45 | FILE*r,*w; | ^ main.c:45:10: warning: variable 'r' set but not used [-Wunused-but-set-variable] 45 | FILE*r,*w; | ^ main.c:49:14: warning: 'n' is used uninitialized [-Wuninitialized] 49 | for(i=0;i<n;i++); | ~^~ main.c:48:9: note: 'n' was declared here