View Compilation Error

0_0_15020577_18640.cpp: In function 'int main()':
0_0_15020577_18640.cpp:24:7: error: incompatible types in assignment of 'const char [1]' to 'char [30]'
    s1 = "", s2 = "";
       ^
0_0_15020577_18640.cpp:24:16: error: incompatible types in assignment of 'const char [1]' to 'char [30]'
    s1 = "", s2 = "";
                ^