View Compilation Error

0_0_37138494_2142.cpp: In function 'int main()':
0_0_37138494_2142.cpp:66:13: error: no match for 'operator=' (operand types are 'ans' and '<brace-enclosed initializer list>')
         maxn={1000000000,1000000000,-1};
             ^
0_0_37138494_2142.cpp:66:13: note: candidates are:
0_0_37138494_2142.cpp:6:8: note: ans& ans::operator=(const ans&)
 struct ans
        ^
0_0_37138494_2142.cpp:6:8: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const ans&'
0_0_37138494_2142.cpp:6:8: note: ans& ans::operator=(ans&&)
0_0_37138494_2142.cpp:6:8: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'ans&&'