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G++WA,C++TLE,ft??????????????????????????????????????????????In Reply To:why wa呀 Posted by:ecjtubaowp at 2007-05-21 18:13:03 > #include<stdio.h> > #include<stdlib.h> > #include<string.h> > int b[82][82]; > int bn[82][82],n; > struct Node > { > int x; > int y; > }node[82]; > int fun(const void*a,const void*b) > { > Node p,q; > p=*(Node*)a,q=*(Node*)b; > if(p.y!=q.y)return p.y-q.y; > return p.x-q.x; > } > int find(int l) > { > int i,j,k,p,sum=0; > for(i=0;i<l-1;i++) > { > memset(bn,0,sizeof(bn)); > for(j=0;j<n;j++) > { > for(k=0;k<n;k++) > { > for(p=0;p<n;p++) > bn[j][k]+=b[j][p]*b[p][k]; > } > } > for(j=0;j<n;j++) > for(k=0;k<n;k++) > b[j][k]=bn[j][k]; > } > for(i=0;i<n;i++) > for(j=0;j<n;j++) > sum+=b[i][j]; > return sum; > } > > int main() > { > int i,j,k,m,max,t,ans,count; > while(scanf("%d",&n)!=EOF) > {memset(b,0,sizeof(b)); > for(i=0;i<n;i++) > { > scanf("%d%d",&node[i].x,&node[i].y); > if(node[i].x>node[i].y) > { > t=node[i].x,node[i].x=node[i].y,node[i].y=t; > } > } > qsort(node,n,sizeof(node[0]),fun); > for(i=0;i<n;i++) > printf("%d %d\n",node[i].x,node[i].y); > ans=1;t=node[0].y; > for(i=1;i<n;i++) > { > if(node[i].x>=t) > { > ans++,t=node[i].y; > } > } > for(i=0;i<n;i++) > for(j=0;j<n;j++) > if(node[i].y<=node[j].x)b[i][j]=1; > > max=n-ans;//ans为不相交的总数 > count=ans-1; > ans=find(count); > if(max==0)printf("0 1\n"); > else printf("%d %d\n",max,ans); > } > } Followed by: Post your reply here: |
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