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View Compilation Error

0_0_20410734_6740.cpp:3:31: error: stray '#' in program
 <span style="font-size:18px;">#include<bits/stdc++.h>
                               ^
0_0_20410734_6740.cpp:3:1: error: expected unqualified-id before '<' token
 <span style="font-size:18px;">#include<bits/stdc++.h>
 ^
0_0_20410734_6740.cpp: In function 'int solve(int, int)':
0_0_20410734_6740.cpp:9:23: error: 'swap' was not declared in this scope
     if(x < y) swap(x,y);
                       ^
0_0_20410734_6740.cpp: In function 'int main()':
0_0_20410734_6740.cpp:16:5: error: 'cin' was not declared in this scope
     cin>>T;
     ^
0_0_20410734_6740.cpp:19:27: error: 'scanf' was not declared in this scope
         scanf("%d%d",&x,&y);
                           ^
0_0_20410734_6740.cpp:20:28: error: '__gcd' was not declared in this scope
         int gcd = __gcd(x,y);   //库中已有的函数,<span style="color:#FF0000;">注意poj中要手写__gcd()</span>
                            ^
0_0_20410734_6740.cpp:23:50: error: 'printf' was not declared in this scope
         printf("Case #%d: %d\n",kase++,solve(x,y));
                                                  ^
0_0_20410734_6740.cpp: At global scope:
0_0_20410734_6740.cpp:25:2: error: expected unqualified-id before '<' token
 }</span>
  ^


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