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Create 1882.cpp

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Kirigaya Kazuto 2016-11-09 12:53:27 +08:00 committed by GitHub
parent b8d8bff064
commit 38d845470e
1 changed files with 54 additions and 0 deletions
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#include <iostream>
#include <stack>
using namespace std;
int ans[1024];
int main()
{
int n,m;
cin>>n>>m;
while(n--)
{
stack<int> s;
int nextTrain=1;
for(int i=0;i<m;i++)
{
cin>>ans[i];
}
int flag=1;
for(int i=0;i<m;i++)
{
int target=ans[i];
if(s.empty())
{
if(nextTrain<m+1)
{
s.push(nextTrain);
++nextTrain;
}
else
{
flag=0;
break;
}
}
if(!flag) break;
while(s.top()!=target)
{
if(nextTrain<m+1)
{
s.push(nextTrain);
++nextTrain;
}
else
{
flag=0;
break;
}
}
if(!flag) break;
s.pop();
}
cout<<(flag?"Yes":"No")<<endl;
}
return 0;
}