Compilare: user.cpp: In function ‘int main()’: user.cpp:13:22: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[100002]’ [-Wformat=] fscanf(f,"%s",&c1); ^ user.cpp:18:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(strlen(fi)<x) ^ user.cpp:20:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(strlen(fi)<x) ^ user.cpp:22:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<strlen(c1);j++) ^ user.cpp:37:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] fr[fi[j++]]++; ^ user.cpp:39:36: warning: array subscript has type ‘char’ [-Wchar-subscripts] fprintf(g,"%d\n",fr[fi[x-1]]); ^ user.cpp:9:16: warning: unused variable ‘n’ [-Wunused-variable] int lg,q,x,n,i,j,k; ^ user.cpp:9:22: warning: unused variable ‘k’ [-Wunused-variable] int lg,q,x,n,i,j,k; ^ user.cpp:12:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&lg,&q); ^ user.cpp:13:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s",&c1); ^ user.cpp:17:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&x); ^