Compilare: user.cpp: In function ‘void dfmr(int)’: user.cpp:43:24: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] if ((jj!=ii-1 & jj!=ii+1 & jj!=ii) ^ user.cpp:43:46: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] if ((jj!=ii-1 & jj!=ii+1 & jj!=ii) ^ user.cpp:44:31: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] ||(ii==1 && jj!=dim & jj!=ii+1 & jj!=ii) ^ user.cpp:44:52: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] ||(ii==1 && jj!=dim & jj!=ii+1 & jj!=ii) ^ user.cpp:45:33: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] ||(ii==dim && jj!=1 & jj!=ii-1 & jj!=ii)) ^ user.cpp:45:52: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] ||(ii==dim && jj!=1 & jj!=ii-1 & jj!=ii)) ^ user.cpp: In function ‘int main()’: user.cpp:67:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &n); ^ user.cpp:71:45: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d %d", &x,&y,&r); ^