Compilare: user.cpp: In function ‘int main()’: user.cpp:51:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[i].st=i-put[p[v[i]]]; ^ user.cpp:54:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[i].dr=i+put[p[v[i]]]; ^ user.cpp:20:19: warning: unused variable ‘s’ [-Wunused-variable] int n,i,j=1,m,s,q,pmax=0,nr=0; ^ user.cpp:20:21: warning: unused variable ‘q’ [-Wunused-variable] int n,i,j=1,m,s,q,pmax=0,nr=0; ^ user.cpp:21:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("char.in","r",stdin); ^ user.cpp:22:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("char.out","w",stdout); ^ user.cpp:23:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n",&n); ^ user.cpp:25:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%c",&v[i]); ^ user.cpp:28:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&m); ^ user.cpp:30:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&put[i]); ^