View Compilation Error

0_0_24158732_8525.cpp: In function 'int main()':
0_0_24158732_8525.cpp:80:30: error: 'j' was not declared in this scope
                     dp[s|(1<<j)][j]=min(dp[s|(1<<j)][j],dp[s][i]+dis_ptop[i][j]);
                              ^