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View Compilation Error

0_0_39226398_13458.cpp: In function 'int bfs(int, int)':
0_0_39226398_13458.cpp:19:5: error: 'memset' was not declared in this scope
   19 |     memset(vis, 0, sizeof(vis));//初首化访问数组为0
      |     ^~~~~~
0_0_39226398_13458.cpp:3:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    2 | #include<queue>
  +++ |+#include <cstring>
    3 | using namespace std;


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