Compilare: user.cpp: In function ‘int main()’: user.cpp:64:18: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] if (tur[1][j]<=x2&tur[3][j]>=x2) ^ user.cpp:65:18: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] if (tur[2][j]<=y2&tur[4][j]>=y2) ^ user.cpp:8:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d %d",&a,&b,&u); ^ user.cpp:11:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d", &x1,&y1); ^ user.cpp:15:19: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.cpp:21:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d %d %d",&x1,&y1,&x2,&y2); ^ user.cpp:38:19: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&m); ^ user.cpp:43:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d %d %d",&x1,&y1,&x2,&y2); ^