Compilare: main.cpp: In function 'char Rec(long long int, long long int, bool)': main.cpp:52:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:65:35: warning: iteration 60 invokes undefined behavior [-Waggressive-loop-optimizations] frec[i][k]=frec[i-1][k]; ~~~~~~~~~~~^ main.cpp:64:22: note: within this loop for(int k=0;k<=60;k++) ~^~~~