View Compilation Error

0_0_29550303_17207.cpp: In function 'int main()':
0_0_29550303_17207.cpp:186:8: error: 'minx' was not declared in this scope
     if(minx[color[x]] == t)continue;
        ^
0_0_29550303_17207.cpp:187:23: error: 'minx' was not declared in this scope
     edge[t].w += edge[minx[color[x]]].w;
                       ^