Compilare: main.cpp: In function 'void caut(int, int, unsigned int)': main.cpp:17:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int x=1;x<=n;x++) ~^~~ main.cpp: In function 'int main()': main.cpp:45:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=2;i<=n;i++) ~^~~ main.cpp:70:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=n;i++) ~^~~ main.cpp:92:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=n;i++) ~^~~ main.cpp:95:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=n;i++) ~^~~