0_0_17736554_3855.cpp: In function 'int main()':
0_0_17736554_3855.cpp:16:20: error: 'strlen' was not declared in this scope
len=strlen(a);
^
0_0_17736554_3855.cpp:50:33: error: 'strcpy' was not declared in this scope
strcpy(b[j],c);
^
0_0_17736554_3855.cpp:62:35: error: 'strcmp' was not declared in this scope
if(strcmp(b[i],b[k])==0 && b[k][0]!='#')
^
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