View Compilation Error

0_0_5124146_3794.cpp: In function `double dist(int, int, int, int)':
0_0_5124146_3794.cpp:41: error: `(x1 - x2)' cannot be used as a function
0_0_5124146_3794.cpp: In function `int main()':
0_0_5124146_3794.cpp:47: error: expected primary-expression at end of input
0_0_5124146_3794.cpp:47: error: expected `)' at end of input
0_0_5124146_3794.cpp:47: error: expected primary-expression at end of input
0_0_5124146_3794.cpp:47: error: expected `;' at end of input
0_0_5124146_3794.cpp:47: error: expected `}' at end of input