0_0_15033934_1560.cpp: In function 'bool BFS(int, int)':
0_0_15033934_1560.cpp:28:32: error: 'memset' was not declared in this scope
memset(sign, -1, sizeof(sign));
^
0_0_15033934_1560.cpp: In function 'void init()':
0_0_15033934_1560.cpp:92:39: error: 'memset' was not declared in this scope
void init(){memset(head,-1,sizeof head);edgenum = 0;}
^
0_0_15033934_1560.cpp: In function 'int main()':
0_0_15033934_1560.cpp:107:30: error: 'memset' was not declared in this scope
memset(use, 0, sizeof use);
^
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