0_0_25971985_12125.cpp: In function 'void bfs(long long int)':
0_0_25971985_12125.cpp:20:38: error: 'memset' was not declared in this scope
memset(pre, 0, sizeof(LL) * (n+2));
^
0_0_25971985_12125.cpp: In function 'long long int KM()':
0_0_25971985_12125.cpp:39:35: error: 'memset' was not declared in this scope
memset(lx, 0, sizeof(LL)*(n+2));
^
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