Compilare: user.cpp: In function ‘int subsir(char*, char*)’: user.cpp:16:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=1; i<strlen(t); i++) ^ user.cpp:13:9: warning: unused variable ‘k’ [-Wunused-variable] int i=0,k=0,j; ^ user.cpp:13:13: warning: unused variable ‘j’ [-Wunused-variable] int i=0,k=0,j; ^ user.cpp: In function ‘int main()’: user.cpp:35:10: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] smaxim[0]=NULL; //1 ^ user.cpp:40:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (maxim<strlen(s) ) //1 ^ user.cpp:45:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (maxim==strlen(s)) //1 ^ user.cpp:27:9: warning: unused variable ‘i’ [-Wunused-variable] int n,p,i; ^