rj.cpp: In function `int main()': rj.cpp:11: warning: unused variable `int tmin' rj.cpp:11: warning: unused variable `int x3' rj.cpp:11: warning: unused variable `int y3' rj.cpp:11: warning: unused variable `int x4' rj.cpp:11: warning: unused variable `int y4' rj.cpp:11: warning: `int x' might be used uninitialized in this function rj.cpp:11: warning: `int y' might be used uninitialized in this function rj.cpp:11: warning: `int x1' might be used uninitialized in this function rj.cpp:11: warning: `int x2' might be used uninitialized in this function rj.cpp:11: warning: `int y1' might be used uninitialized in this function rj.cpp:11: warning: `int y2' might be used uninitialized in this function