0_0_20798631_1554.cpp: In function 'void search(node*, std::string, int)':
0_0_20798631_1554.cpp:82:18: error: 'strcpy' was not declared in this scope
strcpy(ans,sum);
^
0_0_20798631_1554.cpp:92:30: error: 'strlen' was not declared in this scope
int L=strlen(tel[str[v]-'2']);
^
0_0_20798631_1554.cpp: In function 'int main()':
0_0_20798631_1554.cpp:139:14: error: 'strlen' was not declared in this scope
L=strlen(p);
^
0_0_20798631_1554.cpp:144:15: error: 'strcpy' was not declared in this scope
strcpy(q,p);
^
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