View Compilation Error

0_0_21945165_2597.cpp: In function 'int main()':
0_0_21945165_2597.cpp:8:54: error: redeclaration of 'int s'
  int cur, pre, a, b, c, n, m, s, i, j, ans, k, temp, s, t;
                                                      ^
0_0_21945165_2597.cpp:8:31: note: 'int s' previously declared here
  int cur, pre, a, b, c, n, m, s, i, j, ans, k, temp, s, t;
                               ^