0_0_21298182_10482.cpp: In function 'int main()':
0_0_21298182_10482.cpp:26:16: error: 'strlen' was not declared in this scope
len=strlen(s);
^
0_0_21298182_10482.cpp:41:39: error: 'strcmp' was not declared in this scope
if(strcmp(dic[i].back,dic[j].front)==0)
^
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