Compilare: user.cpp: In function ‘int check(bool, int, int)’: user.cpp:14:18: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] dp[t][sum][1 - a & 1] = 1; ^ user.cpp:18:35: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] dp[t][j + v[i + 1]][1 - i & 1] |= dp[t][j][i & 1]; ^ user.cpp:19:35: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] dp[t][j - v[i + 1]][1 - i & 1] |= dp[t][j][i & 1]; ^ user.cpp: In function ‘int main()’: user.cpp:32:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d " ,&n,&q); ^ user.cpp:34:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d " ,&v[i]); ^ user.cpp:38:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d " ,&a,&b); ^