Compilare: main.cpp: In function 'int main()': main.cpp:16:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ((m * (m - 1) / 2) < K) ~~~~~~~~~~~~~~~~~~^~~ main.cpp:19:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (K == (m * (m - 1)) / 2) ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:36:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i != N - (((m ) * (m + 1)) / 2) + K) ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~