View Compilation Error

0_0_16015207_12935.cpp: In function 'int main()':
0_0_16015207_12935.cpp:8:31: error: expected ')' before 'u'
                    if(x*(u-d) u>=n)    //如果这时大于n,则x即是；否则，x 1是
                               ^
0_0_16015207_12935.cpp:9:47: error: expected ')' before numeric constant
                             printf("%d\n",2*x 1);
                                               ^
0_0_16015207_12935.cpp:11:48: error: expected ')' before numeric constant
                             printf("%d\n",2*(x 1) 1);                          
                                                ^
0_0_16015207_12935.cpp:11:53: error: expected ')' before ';' token
                             printf("%d\n",2*(x 1) 1);                          
                                                     ^