0_0_14905520_17687.cpp: In function 'int main()': 0_0_14905520_17687.cpp:14:23: error: 'memset' was not declared in this scope memset(a,0,sizeof(a)); ^ 0_0_14905520_17687.cpp:19:16: error: 'strlen' was not declared in this scope a[0]=strlen(c); ^