View Compilation Error

0_0_21878804_6596.cpp: In function 'int main()':
0_0_21878804_6596.cpp:24:18: error: 'k1' was not declared in this scope
    if((sum >0 &&(k1+k2)>0 && sum1 <0)) { printf("%d\n",i+1); break; }
                  ^
0_0_21878804_6596.cpp:24:21: error: 'k2' was not declared in this scope
    if((sum >0 &&(k1+k2)>0 && sum1 <0)) { printf("%d\n",i+1); break; }
                     ^