0_0_17426569_17108.cpp: In function 'int BFS()':
0_0_17426569_17108.cpp:43:37: error: 'memset' was not declared in this scope
memset(is_used,false,sizeof(is_used));
^
0_0_17426569_17108.cpp:44:22: error: 'strcpy' was not declared in this scope
strcpy(temp.worm,worm);
^
0_0_17426569_17108.cpp: In function 'int main()':
0_0_17426569_17108.cpp:86:19: error: 'strlen' was not declared in this scope
len=strlen(worm);
^
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