0_0_29848265_2785.cpp: In function 'int main()':
0_0_29848265_2785.cpp:17:17: error: 'strlen' was not declared in this scope
len=strlen(a);
^
0_0_29848265_2785.cpp:51:21: error: 'strcpy' was not declared in this scope
strcpy(b[j],c);
^
0_0_29848265_2785.cpp:63:26: error: 'strcmp' was not declared in this scope
if(strcmp(b[i],b[k])==0 && b[k][0]!='#')
^
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