foo.cc: In function 'int main()':
foo.cc:24:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   24 |         for(j=0;v[j];j++);//找到第一个未用的套娃
      |         ^~~
foo.cc:25:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   25 |   {
      |   ^

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Found 10 testcases.
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