View Compilation Error

0_0_10584409_2058.cpp: In function `int calc(int, int, int, int, int, int)':
0_0_10584409_2058.cpp:62: error: redeclaration of `int st'
0_0_10584409_2058.cpp:26: error: `int st' previously declared here
0_0_10584409_2058.cpp:63: error: redeclaration of `int ed'
0_0_10584409_2058.cpp:27: error: `int ed' previously declared here