View Compilation Error

0_0_25011323_15495.cpp: In function 'int main()':
0_0_25011323_15495.cpp:8:2: error: 'nbsp' was not declared in this scope
     scanf("%d",&c);
  ^
0_0_25011323_15495.cpp:16:34: error: 'i' was not declared in this scope
     scanf("%d",&a[i]);
                                  ^
0_0_25011323_15495.cpp:20:37: error: 'j' was not declared in this scope
     int t=abs(a[i]-a[j]);
                                     ^