Compilare: user.cpp: In function ‘void deluMaxu(int)’: user.cpp:67:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i * 2 < maxHeapu.size()) ^ user.cpp:72:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i*2 + 1 < maxHeapu.size() && maxHeapu[i*2+1].val > maxHeapu[i*2].val) ^ user.cpp:69:13: warning: variable ‘val’ set but not used [-Wunused-but-set-variable] int val = maxHeapu[i*2].val; ^ user.cpp: In function ‘void deluMinu(int)’: user.cpp:135:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i * 2 < minHeapu.size()) ^ user.cpp:140:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i*2 + 1 < minHeapu.size() && minHeapu[i*2+1].val < minHeapu[i*2].val) ^ user.cpp:137:13: warning: variable ‘val’ set but not used [-Wunused-but-set-variable] int val = minHeapu[i*2].val; ^