#include <bits/stdc++.h>
using namespace std;
int n,k;
int in[4001][4001];
void slow()
{
for(int i=1;i<=n;i++)
in[i][i]=1;
for(int i=1;i<=n+k-1;i++)
{
char c;
cin>>c;
int x,y;
if(c=='S')
{
cin>>x>>y;
for(int j=1;j<=n;j++)
{
in[x][j]=in[y][j]=max(in[x][j],in[y][j]);
}
}
if(c=='C')
{
cin>>x;
int cnt=0;
for(int j=1;j<=n;j++)
cnt+=in[j][x];
cout<<cnt<<endl;
}
if(c=='Q')
{
cin>>x>>y;
if(in[x][y])cout<<"yes"<<endl;
else cout<<"no"<<endl;
}
}
}
int t[120001];
void subt2()
{
t[1]=1;
int sec=2;
for(int i=1;i<=n+k-1;i++)
{
char c;
cin>>c;
if(c=='S')
{
int x,y;
cin>>x>>y;
t[max(x,y)]=sec++;
}
if(c=='Q')
{
int x,y;
cin>>x>>y;
if(t[y]&&t[y]<=t[x]||x==1&&t[y]||y==1&&t[x]||x==y)cout<<"yes"<<endl;
else cout<<"no"<<endl;
}
if(c=='C')
{
int x;
cin>>x;
if(t[x]==0)cout<<1<<endl;
else if(x==1)cout<<sec-1<<endl;
else cout<<sec-t[x]+1<<endl;
}
}
}
int inc[120001],de[120001];
int find_inc(int ver)
{
cout<<ver<<endl;
if(ver==inc[ver])return ver;
return inc[ver]=find_inc(inc[ver]);
}
int find_de(int ver)
{
if(ver==de[ver])return ver;
return de[ver]=find_de(de[ver]);
}
void subt3()
{
int sec=1;
for(int i=1;i<=n+k-1;i++)
{
int x,y;
char c;
cin>>c>>x;
if(c=='S')
{
cin>>y;
if(y<x)swap(x,y);
t[x]=sec++;
inc[x]=de[x]=x;
if(t[x-1])inc[x-1]=x;
if(t[x+1])de[x+1]=x;
}
if(c=='Q')
{
cin>>y;
int ver=x;
if(y>x)
{
if(!t[ver])
{
cout<<"no"<<endl;
continue;
}
ver=find_inc(ver);
if(ver+1>=y)cout<<"yes"<<endl;
else cout<<"no"<<endl;
}
else if(x>y)
{
if(!t[ver-1])
{
cout<<"no"<<endl;
continue;
}
ver=find_de(ver-1);
if(ver<=y)cout<<"yes"<<endl;
else cout<<"no"<<endl;
}
else cout<<"yes"<<endl;
}
if(c=='C')
{
if(x!=n&&t[x])
{
cout<<"! "<<x<<endl;
cnt+=find_inc(x)-x+1;
}
if(x!=1&&t[x-1])
{
cout<<"!! "<<x-1<<endl;
cnt+=x-find_de(x-1);
}
cout<<cnt<<endl;
}
}
}
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
cin>>n>>k;
/*if(n<=4000)slow();
else*/ subt3();
return 0;
}
Compilation message
servers.cpp: In function 'void subt2()':
servers.cpp:66:20: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
66 | if(t[y]&&t[y]<=t[x]||x==1&&t[y]||y==1&&t[x]||x==y)cout<<"yes"<<endl;
| ~~~~^~~~~~~~~~~~
servers.cpp:66:50: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
66 | if(t[y]&&t[y]<=t[x]||x==1&&t[y]||y==1&&t[x]||x==y)cout<<"yes"<<endl;
| ~~~~^~~~~~
servers.cpp: In function 'void subt3()':
servers.cpp:145:17: error: 'cnt' was not declared in this scope; did you mean 'int'?
145 | cnt+=find_inc(x)-x+1;
| ^~~
| int
servers.cpp:150:17: error: 'cnt' was not declared in this scope; did you mean 'int'?
150 | cnt+=x-find_de(x-1);
| ^~~
| int
servers.cpp:152:19: error: 'cnt' was not declared in this scope; did you mean 'int'?
152 | cout<<cnt<<endl;
| ^~~
| int
