View Compilation Error

0_0_23520188_2819.cpp: In function 'int main()':
0_0_23520188_2819.cpp:9:13: error: 'c' was not declared in this scope
         for(c=100,i=0;i<n;i++)
             ^
0_0_23520188_2819.cpp:14:28: error: 'c' was not declared in this scope
         printf("%d\n",(100-c)*(100-c));
                            ^