View Compilation Error

0_0_28572277_12578.cpp: In function 'int main()':
0_0_28572277_12578.cpp:37:8: error: 'i' was not declared in this scope
    for(i=1;i<N-1;i++)
        ^
0_0_28572277_12578.cpp:58:9: error: 'i' was not declared in this scope
    for( i=0;i<N-2;i++)
         ^