Compilare: main.cpp: In function 'int main()': main.cpp:42:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i <= n; i++) ~~^~~~ main.cpp:51:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (i <= n || p < u) ~~^~~~ main.cpp:53:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i <= n && val[i] <= val[q[p]]) ~~^~~~ main.cpp:55:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i < n && val[i+1] <= val[q[p]]) ~~^~~ main.cpp:67:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i <= n && (p == u || val[i] <= val[q[p+1]])) ~~^~~~ main.cpp:81:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = n + 1; i <= nr; i++) ~~^~~~~ main.cpp:86:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i <= n; i++) ~~^~~~