Compilare: user.cpp: In function ‘int main()’: user.cpp:20:20: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(i==n&&dp[i][j]||dp[i][sum/2]||dp[i][sum/2-1]){best=j;printf("%d %d\n",best,sum-best);return 0;} ^ user.cpp:10:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("jocul.in","r",stdin); ^ user.cpp:11:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("jocul.out","w",stdout); ^ user.cpp:12:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n",&n); ^ user.cpp:14:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] {scanf("%d\n",&s[i]);sum+=s[i];dp[1][s[i]]=1;} ^