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1089题材,不知死在哪了,求指教#include<iostream>
using namespace std;
#define N 100000
void sort(int array[],int end[],int zz,int yy)
{
int k,i,z,y,k1;
if(zz<yy)
{
z=zz;y=yy;k=array[z];k1=end[z];
do{
while((z<y)&&(array[y]>=k))
y--;
if(z<y)
{
array[z]=array[y];
end[z]=end[y];
z++;
}
while((z<y)&&(array[z]<=k))
{
z++;
}
if(z<y)
{
array[y]=array[z];
end[y]=end[z];
}
}while(z!=y);
array[z]=k;end[z]=k1;
sort(array,end,zz,z-1);
sort(array,end,z+1,yy);
}
}
int main()
{
int n,i=0,t=0,u=0;
int begin[N],end[N];
cin>>n;
for(i=0;i<n;i++)
{
cin>>begin[i]>>end[i];
}
sort(begin,end,0,n-1);
for(i=0;i<n-1;i++)
{
for(int j=0;j<n-1-i;j++)
{
if((begin[j]==begin[j+1])&&(end[j]>end[j+1]))
{
u=end[i];
end[j]=end[j+1];
end[j+1]=u;
}
}
}
u=begin[0],t=end[0];
for(i=0;i<n;i++)
{
if(end[i]<begin[i+1])
{
cout<<u<<" "<<t<<endl;
u=begin[i+1];
t=end[i+1];
}
else if(end[i]<=end[i+1])
{
t=end[i+1];
}
else{
while((i<n)&&(t>end[i+1]))
{
i++;
if(t<begin[i+1])
{
cout<<u<<" "<<t<<endl;
u=begin[i+1];
t=end[i+1];
break;
}
else if(t<=end[i+1])
{
t=end[i+1];
}
}
}
}
cout<<u<<" "<<t<<endl;
return 0;
}
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