0_0_22363641_7956.cpp: In function 'int geth()':
0_0_22363641_7956.cpp:24:30: error: 'pos' was not declared in this scope
ans=max(ans,a[i].len-pos[i]);
^
0_0_22363641_7956.cpp: In function 'bool dfs(int)':
0_0_22363641_7956.cpp:28:5: error: 'step' was not declared in this scope
if(step+geth()>deep)
^
0_0_22363641_7956.cpp: In function 'int main()':
0_0_22363641_7956.cpp:45:13: error: 'pos' was not declared in this scope
pos[i]=0;
^
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