Compilare: main.cpp: In function 'int main()': main.cpp:19:53: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(!st.empty() && x > st.back() && n - i >= n - k - st.size()) ~~~~~~^~~~~~~~~~~~~~~~~~~~ main.cpp:18:13: warning: unused variable 'marime' [-Wunused-variable] int marime = st.size(); ^~~~~~ main.cpp:9:18: warning: variable 'numar' set but not used [-Wunused-but-set-variable] int n, k, x, numar; ^~~~~