View Compilation Error

0_0_25443523_5071.cpp: In function 'int main()':
0_0_25443523_5071.cpp:10:21: error: redeclaration of 'int t'
   if (m > n) int t, t = m, m = n, n = t;
                     ^
0_0_25443523_5071.cpp:10:18: note: 'int t' previously declared here
   if (m > n) int t, t = m, m = n, n = t;
                  ^