View Compilation Error

0_0_29741914_17437.cpp: In function 'int main()':
0_0_29741914_17437.cpp:42:37: error: expected ')' before ';' token
         for(int i=1; i<=n;s1(a[i++]);
                                     ^
0_0_29741914_17437.cpp:43:37: error: expected ')' before ';' token
         for(int i=1; i<=n;s1(b[i++]);
                                     ^