View Compilation Error

0_0_28721873_5897.cpp: In function 'int main()':
0_0_28721873_5897.cpp:11:17: error: 'i' was not declared in this scope
             for(i=1;i<n-1;i++){
                 ^
0_0_28721873_5897.cpp:12:21: error: 'j' was not declared in this scope
                 for(j=i+1;j<n;j++){
                     ^
0_0_28721873_5897.cpp:17:36: error: 'k' was not declared in this scope
             printf("Case %d: %d\n",k++,count);
                                    ^