0_0_17025204_15568.cpp:1:5: error: 'ans' does not name a type
ans := 0
^
0_0_17025204_15568.cpp:3:5: error: 'cow' does not name a type
cow[n+1] = infinity
^
0_0_17025204_15568.cpp:9:52: error: 'to' does not name a type
append new element {height:cow[i],index=i} to tail of monoq
^
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