Compilare: main.cpp: In function 'long unsigned int binomialCoeff(unsigned int, unsigned int)': main.cpp:55:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < k; ++i) ~~^~~ main.cpp: In function 'long unsigned int catalanDP(unsigned int)': main.cpp:84:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=2; i<=n; i++) ~^~~ main.cpp: In function 'long unsigned int catalan(unsigned int)': main.cpp:102:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<n; i++) ~^~ main.cpp: In function 'int funcct()': main.cpp:200:11: warning: unused variable 'i' [-Wunused-variable] int n,i,j; ^ main.cpp:200:13: warning: unused variable 'j' [-Wunused-variable] int n,i,j; ^ main.cpp: In function 'void aria()': main.cpp:787:18: warning: 'n' is used uninitialized in this function [-Wuninitialized] for(i = 1; i <= n; i++) ~~^~~~