Compilare: user.cpp: In function ‘int findInColumn(int, int, int)’: user.cpp:44:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(; k < N && sums[k] < it * value; k++); ^ user.cpp:45:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(sums[k] == it*value) ^ user.cpp: In function ‘int main()’: user.cpp:66:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < N && sums[i] < minNumber; i++); ^ user.cpp:87:12: warning: attempt to free a non-heap object ‘sums’ [-Wfree-nonheap-object] free(sums); ^