hdu 2831(贪心)
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2831
思路:按剩余时间排序即可,简单贪心。
1 #include<iostream> 2 #include<cstdio> 3 #include<cstring> 4 #include<algorithm> 5 using namespace std; 6 #define MAXN 111 7 struct Node{ 8 int v,d,index; 9 }node[MAXN]; 10 int n,t; 11 bool flag; 12 13 int cmp(const Node &p,const Node &q){ 14 return p.v-p.d-t<q.v-q.d-t; 15 } 16 17 18 int main(){ 19 // freopen("1.txt","r",stdin); 20 while(~scanf("%d%d",&n,&t)){ 21 for(int i=1;i<=n;i++){ 22 scanf("%d%d",&node[i].v,&node[i].d); 23 node[i].index=i; 24 } 25 sort(node+1,node+1+n,cmp); 26 flag=true; 27 int tt=t; 28 for(int i=1;i<=n;i++){ 29 if(node[i].v-node[i].d-t<0){ flag=false;break; } 30 t+=tt; 31 } 32 if(!flag){ puts("The zombies eat your brains!");continue; } 33 for(int i=1;i<=n;i++){ 34 i==1?printf("%d",node[i].index):printf(" %d",node[i].index); 35 } 36 puts(""); 37 } 38 return 0; 39 }