Compilare: user.cpp: In function ‘int main()’: user.cpp:28:15: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] b=dp[1-i&1][j]+myabs(v[i]+j*x[i]); ^ user.cpp:16:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d " ,&n); ^ user.cpp:18:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d " ,&v[i],&x[i]); ^