View Compilation Error

100058_0_17452.cpp: In function `int main()':
100058_0_17452.cpp:5: error: redeclaration of `int x1'
100058_0_17452.cpp:5: error: `int x1' previously declared here
100058_0_17452.cpp:5: error: redeclaration of `int y2'
100058_0_17452.cpp:5: error: `int y2' previously declared here
100058_0_17452.cpp:6: error: `x2' undeclared (first use this function)
100058_0_17452.cpp:6: error: (Each undeclared identifier is reported only once for each function it appears in.)
100058_0_17452.cpp:6: error: `y1' undeclared (first use this function)
100058_0_17452.cpp:9: error: cannot resolve overloaded function `sqrt' based on conversion to type `int'
100058_0_17452.cpp:9: error: expected `;' before "m"