0_0_26308007_14660\Main.java:1: 错误: 非法字符: '#'
#include <bits/stdc++.h>
^
0_0_26308007_14660\Main.java:1: 错误: 需要class, interface或enum
#include <bits/stdc++.h>
^
0_0_26308007_14660\Main.java:5: 错误: 需要class, interface或enum
int main()
^
0_0_26308007_14660\Main.java:8: 错误: 需要class, interface或enum
while (scanf("%d", &n) && n != -1)
^
0_0_26308007_14660\Main.java:13: 错误: 需要class, interface或enum
continue;
^
0_0_26308007_14660\Main.java:14: 错误: 需要class, interface或enum
}
^
0_0_26308007_14660\Main.java:16: 错误: 需要class, interface或enum
for (int i = 1; i <= n; i++)
^
0_0_26308007_14660\Main.java:16: 错误: 需要class, interface或enum
for (int i = 1; i <= n; i++)
^
0_0_26308007_14660\Main.java:16: 错误: 需要class, interface或enum
for (int i = 1; i <= n; i++)
^
0_0_26308007_14660\Main.java:18: 错误: 需要class, interface或enum
if (n & 1)
^
0_0_26308007_14660\Main.java:20: 错误: 需要class, interface或enum
else
^
0_0_26308007_14660\Main.java:23: 错误: 需要class, interface或enum
ans += n / 2 * pow(3LL, n / 2);
^
0_0_26308007_14660\Main.java:24: 错误: 需要class, interface或enum
}
^
0_0_26308007_14660\Main.java:26: 错误: 需要class, interface或enum
}
^
0_0_26308007_14660\Main.java:28: 错误: 需要class, interface或enum
}
^
15 个错误
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