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View Compilation Error

0_0_1795790_6025\Main.java:2: 非法字符: \35
#include<stdio.h>
^
0_0_1795790_6025\Main.java:3: 非法字符: \35
#include<math.h>
^
0_0_1795790_6025\Main.java:8: 需要为 class、interface 或 enum
while(scanf("%f %f %f %f",&x1,&y1,&x2,&y2)!=EOF)
^
0_0_1795790_6025\Main.java:10: 需要为 class、interface 或 enum
printf("%.2f\n",length);}
^
0_0_1795790_6025\Main.java:10: 需要为 class、interface 或 enum
printf("%.2f\n",length);}
                        ^
0_0_1795790_6025\Main.java:12: 需要为 class、interface 或 enum
} 


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