Compilare: user.cpp: In function ‘void Suffix()’: user.cpp:26:39: warning: array subscript has type ‘char’ [-Wchar-subscripts] for(i = 1; i <= N; ++i) v[ s[i-1] ].push_back(i); ^ user.cpp:24:13: warning: unused variable ‘t’ [-Wunused-variable] int i,j,t,k,p,idx; ^ user.cpp:24:17: warning: unused variable ‘p’ [-Wunused-variable] int i,j,t,k,p,idx; ^ user.cpp: In function ‘bool good(int)’: user.cpp:76:38: warning: operation on ‘cnt’ may be undefined [-Wsequence-point] cnt = (d[i] >= f ? ++cnt : 1); ^ user.cpp: In function ‘int main()’: user.cpp:89:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d\n",&N,&K); ^ user.cpp:90:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%s",s); ^