View Compilation Error

0_0_25606791_12788.cpp: In function 'int main()':
0_0_25606791_12788.cpp:23:29: error: 'w' was not declared in this scope
                     if(dp[j-w[i]][k-w2[i]]&&dp[j][k]<dp[j-w1[i]][k-w2[i]]+c[i])
                             ^