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View Compilation Error

0_0_37821139_2822.cpp: In function 'int diji(int)':
0_0_37821139_2822.cpp:34:27: error: 'vis' was not declared in this scope
     for(int i=1;i<=n;i++) vis[i]=0;
                           ^
0_0_37821139_2822.cpp:38:12: error: 'vis' was not declared in this scope
         if(vis[u]) continue;
            ^
0_0_37821139_2822.cpp:39:9: error: 'vis' was not declared in this scope
         vis[u]=1;
         ^


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