Compilare: user.cpp: In function ‘void coboara(int)’: user.cpp:38:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(fs<=nh && D[h[fs]]<D[h[bun]]) ^ user.cpp:40:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(fd<=nh && D[h[fd]]<D[h[bun]]) ^ user.cpp: In function ‘int main()’: user.cpp:99:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=1; i<=n; ++i) ^ user.cpp:101:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=1; i<=k; ++i) ^ user.cpp:111:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=1; i<=m; ++i) ^ user.cpp:120:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=1; i<=n; ++i) ^