PAT (Advanced Level) Practise 1026. Table Tennis (30)
2018-01-15 09:14
411 查看
A table tennis club has N tables available to the public. The tables are numbered from 1 to N. For any pair of players, if there are some tables open when they arrive, they will be assigned to the available table with the smallest number. If all the tables
are occupied, they will have to wait in a queue. It is assumed that every pair of players can play for at most 2 hours.
Your job is to count for everyone in queue their waiting time, and for each table the number of players it has served for the day.
One thing that makes this procedure a bit complicated is that the club reserves some tables for their VIP members. When a VIP table is open, the first VIP pair in the queue will have the priviledge to take it. However, if there is no VIP in the queue, the next
pair of players can take it. On the other hand, if when it is the turn of a VIP pair, yet no VIP table is available, they can be assigned as any ordinary players.
Input Specification:
Each input file contains one test case. For each case, the first line contains an integer N (<=10000) - the total number of pairs of players. Then N lines follow, each contains 2 times and a VIP tag: HH:MM:SS - the arriving time, P - the playing time in minutes
of a pair of players, and tag - which is 1 if they hold a VIP card, or 0 if not. It is guaranteed that the arriving time is between 08:00:00 and 21:00:00 while the club is open. It is assumed that no two customers arrives at the same time. Following the players'
info, there are 2 positive integers: K (<=100) - the number of tables, and M (< K) - the number of VIP tables. The last line contains M table numbers.
Output Specification:
For each test case, first print the arriving time, serving time and the waiting time for each pair of players in the format shown by the sample. Then print in a line the number of players served by each table. Notice that the output must be listed in chronological
order of the serving time. The waiting time must be rounded up to an integer minute(s). If one cannot get a table before the closing time, their information must NOT be printed.
Sample Input:
Sample Output:
代码:
#include <cstdio>
#include <vector>
#include <algorithm>
#include <cmath>
using namespace std;
struct person {
int arrive, start, time;
bool vip;
}tempperson;
struct tablenode {
int end = 8 * 3600, num;
bool vip;
};
bool cmp1(person a, person b) {
return a.arrive < b.arrive;
}
bool cmp2(person a, person b) {
return a.start < b.start;
}
vector<person> player;
vector<tablenode> table;
void alloctable(int personid, int tableid) {
if(player[personid].arrive <= table[tableid].end)
player[personid].start = table[tableid].end;
else
player[personid].start = player[personid].arrive;
table[tableid].end = player[personid].start + player[personid].time;
table[tableid].num++;
}
int findnextvip(int vipid) {
vipid++;
while(vipid < player.size() && player[vipid].vip == false) {
vipid++;
}
return vipid;
}
int main() {
int n, k, m, viptable;
scanf("%d", &n);
for(int i = 0; i < n; i++) {
int h, m, s, temptime, flag;
scanf("%d:%d:%d %d %d", &h, &m, &s, &temptime, &flag);
tempperson.arrive = h * 3600 + m * 60 + s;
tempperson.start = 21 * 3600;
if(tempperson.arrive >= 21 * 3600)
continue;
tempperson.time = temptime <= 120 ? temptime * 60 : 7200;
tempperson.vip = ((flag == 1) ? true : false);
player.push_back(tempperson);
}
scanf("%d%d", &k, &m);
table.resize(k + 1);
for(int i = 0; i < m; i++) {
scanf("%d", &viptable);
table[viptable].vip = true;
}
sort(player.begin(), player.end(), cmp1);
int i = 0, vipid = -1;
vipid = findnextvip(vipid);
while(i < player.size()) {
int index = -1, minendtime = 999999999;
for(int j = 1; j <= k; j++) {
if(table[j].end < minendtime) {
minendtime = table[j].end;
index = j;
}
}
if(table[index].end >= 21 * 3600)
break;
if(player[i].vip == true && i < vipid) {
i++;
continue;
}
if(table[index].vip == true) {
if(player[i].vip == true) {
alloctable(i, index);
if(vipid == i)
vipid = findnextvip(vipid);
i++;
} else {
if(vipid < player.size() && player[vipid].arrive <= table[index].end) {
alloctable(vipid, index);
vipid = findnextvip(vipid);
} else {
alloctable(i, index);
i++;
}
}
} else {
if(player[i].vip == false) {
alloctable(i, index);
i++;
} else {
int vipindex = -1, minvipendtime = 999999999;
for(int j = 1; j <= k; j++) {
if(table[j].vip == true && table[
4000
j].end < minvipendtime) {
minvipendtime = table[j].end;
vipindex = j;
}
}
if(vipindex != -1 && player[i].arrive >= table[vipindex].end) {
alloctable(i, vipindex);
if(vipid == i)
vipid = findnextvip(vipid);
i++;
} else {
alloctable(i, index);
if(vipid == i)
vipid = findnextvip(vipid);
i++;
}
}
}
}
sort(player.begin(), player.end(), cmp2);
for(i = 0; i < player.size() && player[i].start < 21 * 3600; i++) {
printf("%02d:%02d:%02d ", player[i].arrive / 3600, player[i].arrive % 3600 / 60, player[i].arrive % 60);
printf("%02d:%02d:%02d ", player[i].start / 3600, player[i].start % 3600 / 60, player[i].start % 60);
printf("%.0f\n", round((player[i].start - player[i].arrive) / 60.0));
}
for(int i = 1; i <= k; i++) {
if(i != 1)
printf(" ");
printf("%d", table[i].num);
}
return 0;
}
are occupied, they will have to wait in a queue. It is assumed that every pair of players can play for at most 2 hours.
Your job is to count for everyone in queue their waiting time, and for each table the number of players it has served for the day.
One thing that makes this procedure a bit complicated is that the club reserves some tables for their VIP members. When a VIP table is open, the first VIP pair in the queue will have the priviledge to take it. However, if there is no VIP in the queue, the next
pair of players can take it. On the other hand, if when it is the turn of a VIP pair, yet no VIP table is available, they can be assigned as any ordinary players.
Input Specification:
Each input file contains one test case. For each case, the first line contains an integer N (<=10000) - the total number of pairs of players. Then N lines follow, each contains 2 times and a VIP tag: HH:MM:SS - the arriving time, P - the playing time in minutes
of a pair of players, and tag - which is 1 if they hold a VIP card, or 0 if not. It is guaranteed that the arriving time is between 08:00:00 and 21:00:00 while the club is open. It is assumed that no two customers arrives at the same time. Following the players'
info, there are 2 positive integers: K (<=100) - the number of tables, and M (< K) - the number of VIP tables. The last line contains M table numbers.
Output Specification:
For each test case, first print the arriving time, serving time and the waiting time for each pair of players in the format shown by the sample. Then print in a line the number of players served by each table. Notice that the output must be listed in chronological
order of the serving time. The waiting time must be rounded up to an integer minute(s). If one cannot get a table before the closing time, their information must NOT be printed.
Sample Input:
9 20:52:00 10 0 08:00:00 20 0 08:02:00 30 0 20:51:00 10 0 08:10:00 5 0 08:12:00 10 1 20:50:00 10 0 08:01:30 15 1 20:53:00 10 1 3 1 2
Sample Output:
08:00:00 08:00:00 0 08:01:30 08:01:30 0 08:02:00 08:02:00 0 08:12:00 08:16:30 5 08:10:00 08:20:00 10 20:50:00 20:50:00 0 20:51:00 20:51:00 0 20:52:00 20:52:00 03 3 2
代码:
#include <cstdio>
#include <vector>
#include <algorithm>
#include <cmath>
using namespace std;
struct person {
int arrive, start, time;
bool vip;
}tempperson;
struct tablenode {
int end = 8 * 3600, num;
bool vip;
};
bool cmp1(person a, person b) {
return a.arrive < b.arrive;
}
bool cmp2(person a, person b) {
return a.start < b.start;
}
vector<person> player;
vector<tablenode> table;
void alloctable(int personid, int tableid) {
if(player[personid].arrive <= table[tableid].end)
player[personid].start = table[tableid].end;
else
player[personid].start = player[personid].arrive;
table[tableid].end = player[personid].start + player[personid].time;
table[tableid].num++;
}
int findnextvip(int vipid) {
vipid++;
while(vipid < player.size() && player[vipid].vip == false) {
vipid++;
}
return vipid;
}
int main() {
int n, k, m, viptable;
scanf("%d", &n);
for(int i = 0; i < n; i++) {
int h, m, s, temptime, flag;
scanf("%d:%d:%d %d %d", &h, &m, &s, &temptime, &flag);
tempperson.arrive = h * 3600 + m * 60 + s;
tempperson.start = 21 * 3600;
if(tempperson.arrive >= 21 * 3600)
continue;
tempperson.time = temptime <= 120 ? temptime * 60 : 7200;
tempperson.vip = ((flag == 1) ? true : false);
player.push_back(tempperson);
}
scanf("%d%d", &k, &m);
table.resize(k + 1);
for(int i = 0; i < m; i++) {
scanf("%d", &viptable);
table[viptable].vip = true;
}
sort(player.begin(), player.end(), cmp1);
int i = 0, vipid = -1;
vipid = findnextvip(vipid);
while(i < player.size()) {
int index = -1, minendtime = 999999999;
for(int j = 1; j <= k; j++) {
if(table[j].end < minendtime) {
minendtime = table[j].end;
index = j;
}
}
if(table[index].end >= 21 * 3600)
break;
if(player[i].vip == true && i < vipid) {
i++;
continue;
}
if(table[index].vip == true) {
if(player[i].vip == true) {
alloctable(i, index);
if(vipid == i)
vipid = findnextvip(vipid);
i++;
} else {
if(vipid < player.size() && player[vipid].arrive <= table[index].end) {
alloctable(vipid, index);
vipid = findnextvip(vipid);
} else {
alloctable(i, index);
i++;
}
}
} else {
if(player[i].vip == false) {
alloctable(i, index);
i++;
} else {
int vipindex = -1, minvipendtime = 999999999;
for(int j = 1; j <= k; j++) {
if(table[j].vip == true && table[
4000
j].end < minvipendtime) {
minvipendtime = table[j].end;
vipindex = j;
}
}
if(vipindex != -1 && player[i].arrive >= table[vipindex].end) {
alloctable(i, vipindex);
if(vipid == i)
vipid = findnextvip(vipid);
i++;
} else {
alloctable(i, index);
if(vipid == i)
vipid = findnextvip(vipid);
i++;
}
}
}
}
sort(player.begin(), player.end(), cmp2);
for(i = 0; i < player.size() && player[i].start < 21 * 3600; i++) {
printf("%02d:%02d:%02d ", player[i].arrive / 3600, player[i].arrive % 3600 / 60, player[i].arrive % 60);
printf("%02d:%02d:%02d ", player[i].start / 3600, player[i].start % 3600 / 60, player[i].start % 60);
printf("%.0f\n", round((player[i].start - player[i].arrive) / 60.0));
}
for(int i = 1; i <= k; i++) {
if(i != 1)
printf(" ");
printf("%d", table[i].num);
}
return 0;
}
相关文章推荐
- PAT (Advanced Level) Practise 1026 Table Tennis (30)
- PAT (Advanced Level) Practise 1026 Table Tennis (30)
- 1026. Table Tennis (30) @ PAT (Advanced Level) Practise
- 1026. Table Tennis (30)【排序+模拟+逻辑复杂】——PAT (Advanced Level) Practise
- 浙大 PAT Advanced level 1026. Table Tennis (30)
- PAT (Advanced Level) 1026. Table Tennis (30)
- 【PAT】【Advanced Level】1026. Table Tennis (30)
- 1072. Gas Station (30)【最短路dijkstra】——PAT (Advanced Level) Practise
- PAT (Advanced Level) Practise 1034 Head of a Gang (30)
- 1064. Complete Binary Search Tree (30)【二叉树】——PAT (Advanced Level) Practise
- PAT (Advanced Level) Practise 1131 Subway Map (30)
- PAT (Advanced Level) Practise 1068 Find More Coins (30)
- PAT (Advanced Level) Practise 1091 Acute Stroke (30)
- PAT (Advanced Level) Practise 1119 Pre- and Post-order Traversals (30)
- PAT (Advanced Level) Practise 1107. Social Clusters (30) 并查集
- PAT (Advanced Level) Practise 1004. Counting Leaves (30)
- PAT (Advanced Level) Practise 1018. Public Bike Management (30)
- PAT (Advanced Level) Practise 1107 Social Clusters (30)
- 1030. Travel Plan (30)【最短路+路径记忆】——PAT (Advanced Level) Practise
- 1080. Graduate Admission (30)【排序】——PAT (Advanced Level) Practise