View Compilation Error

0_0_36432835_2987.cpp: In function 'int main()':
0_0_36432835_2987.cpp:18:18: error: 'inf' was not declared in this scope
         ll ma = -inf, ss = 0;
                  ^
0_0_36432835_2987.cpp:21:13: error: 'ss' was not declared in this scope
             ss += a[i];
             ^