Compilare: user.cpp: In function ‘int main()’: user.cpp:26:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (dp[j] != i + 1 && dp[j]!=0) ^ user.cpp:28:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (dp[j + v[i]] <= limit) ^ user.cpp:40:49: warning: operation on ‘nr2’ may be undefined [-Wsequence-point] if (nr1 > nr2) nr1 = nr1 + nr2 - (nr2 = nr1); ^