View Compilation Error

0_0_33854036_16462.cpp: In function 'int main()':
0_0_33854036_16462.cpp:11:9: error: '_int64' was not declared in this scope
         _int64 price;
         ^
0_0_33854036_16462.cpp:13:22: error: 'price' was not declared in this scope
         cin>>events>>price>>salary;
                      ^