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View Compilation Error

0_0_9021051_11380\Main.java:1: 非法字符: \35
#include<cstdio>
^
0_0_9021051_11380\Main.java:2: 非法字符: \35
#include<iostream>
^
0_0_9021051_11380\Main.java:3: 非法字符: \35
#include<cmath>
^
0_0_9021051_11380\Main.java:5: 需要为 class、interface 或 enum
int main()
^
0_0_9021051_11380\Main.java:8: 需要为 class、interface 或 enum
    while(scanf("%lf%lf%lf%lf",&x1,&x2,&y1,y2)!=EOF)
    ^
0_0_9021051_11380\Main.java:11: 需要为 class、interface 或 enum
    bb=(y1-y2)*(y1-y2);
    ^
0_0_9021051_11380\Main.java:12: 需要为 class、interface 或 enum
    cc=aa=bb;
    ^
0_0_9021051_11380\Main.java:13: 需要为 class、interface 或 enum
    tt=sqrt( cc );
    ^
0_0_9021051_11380\Main.java:14: 需要为 class、interface 或 enum
    printf("%.2lf\n",tt);    
    ^
0_0_9021051_11380\Main.java:15: 需要为 class、interface 或 enum
    }
    ^
0_0_9021051_11380\Main.java:17: 需要为 class、interface 或 enum
}
^
11 错误


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