Compilare: main.cpp: In function 'int main()': main.cpp:17:15: warning: array subscript has type 'char' [-Wchar-subscripts] f[c[j]][j]=j; ^ main.cpp:29:27: warning: array subscript has type 'char' [-Wchar-subscripts] loc=f[a[j]][loc]+1; ^ main.cpp:11:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s",c); ^ main.cpp:20:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n",&n); ^ main.cpp:23:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s",a);;for(k=0;a[k];k++);sol[l]=0; ^