View Compilation Error

0_0_27615027_525.cpp: In function 'int main()':
0_0_27615027_525.cpp:4:2: error: 'nbsp' was not declared in this scope
     int a[101], i, j, n, m=0, s1, s2, time1;
  ^
0_0_27615027_525.cpp:17:42: error: 'else' without a previous 'if'
            else
                                          ^