0_0_30023136_28422.cpp: In function 'int main()': 0_0_30023136_28422.cpp:9:24: error: 'memset' was not declared in this scope memset(c,0,100); ^ 0_0_30023136_28422.cpp:22:36: error: 'strcmp' was not declared in this scope if(strcmp(a[i],a[j])==0) ^