Compilare: main.cpp: In function 'bool subsir(char*, char*)': main.cpp:6:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<=strlen(a);i++){ ~^~~~~~~~~~~ main.cpp:8:7: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(k==strlen(b)){ ~^~~~~~~~~~~ main.cpp:13:6: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(k!=strlen(b))return false; ~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:30:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(max1==strlen(a[i])){ ~~~~^~~~~~~~~~~~~~ main.cpp:31:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<=strlen(a[i]);j++) ~^~~~~~~~~~~~~~ main.cpp:21:7: warning: unused variable 'x' [-Wunused-variable] char x[5005]; ^ main.cpp: In function 'bool subsir(char*, char*)': main.cpp:14:1: warning: control reaches end of non-void function [-Wreturn-type] } ^