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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#574599 | #9308. World Cup | yylx | WA | 1ms | 3864kb | C++14 | 2.4kb | 2024-09-18 23:10:59 | 2024-09-18 23:11:00 |
Judging History
answer
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int simulateTournament(vector<int>& strengths) {
// 1. Sort teams by strength (descending)
sort(strengths.begin(), strengths.end(), greater<int>());
// 2. Group Stage Arrangement
vector<vector<int>> groups(8, vector<int>(4));
groups[0] = {strengths[0], strengths[31], strengths[30], strengths[29]}; // Chinese team with weakest
int strengthIndex = 1;
for (int i = 1; i < 8; ++i) {
for (int j = 0; j < 4; ++j) {
groups[i][j] = strengths[strengthIndex++];
}
}
// 3. Simulate Knockout Stage
vector<int> roundOf16;
for (int i = 0; i < 8; ++i) {
// Find the top two teams in each group
sort(groups[i].begin(), groups[i].end(), greater<int>());
roundOf16.push_back(groups[i][0]);
roundOf16.push_back(groups[i][1]);
}
// Predefined Round of 16 matches
vector<pair<int, int>> matches = {
{0, 9}, {8, 1}, {2, 11}, {10, 3}, {4, 13}, {12, 5}, {6, 15}, {14, 7}
};
vector<int> quarterFinals;
for (auto& match : matches) {
quarterFinals.push_back(max(roundOf16[match.first], roundOf16[match.second]));
}
vector<int> semiFinals;
for (int i = 0; i < 4; ++i) {
semiFinals.push_back(max(quarterFinals[2 * i], quarterFinals[2 * i + 1]));
}
int finalist1 = max(semiFinals[0], semiFinals[1]);
int finalist2 = max(semiFinals[2], semiFinals[3]);
int champion = max(finalist1, finalist2);
// 4. Determine Chinese team's result
if (champion == strengths[0]) return 1; // Champion
if (finalist1 == strengths[0] || finalist2 == strengths[0]) return 2; // Finalist
if (find(semiFinals.begin(), semiFinals.end(), strengths[0]) != semiFinals.end()) return 4; // Semi-finalist
if (find(quarterFinals.begin(), quarterFinals.end(), strengths[0]) != quarterFinals.end()) return 8; // Quarter-finalist
if (find(roundOf16.begin(), roundOf16.end(), strengths[0]) != roundOf16.end()) return 16; // Round of 16
return 32; // Didn't advance
}
int main() {
int t;
cin >> t;
while (t--) {
vector<int> strengths(32);
for (int i = 0; i < 32; ++i) {
cin >> strengths[i];
}
int result = simulateTournament(strengths);
cout << result << endl;
}
return 0;
}
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 3564kb
input:
1 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
output:
1
result:
ok 1 number(s): "1"
Test #2:
score: -100
Wrong Answer
time: 1ms
memory: 3864kb
input:
32 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 3 1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 4 1 2 3 5 6 7 8 9 10 11 12 13 14 15 ...
output:
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
result:
wrong answer 1st numbers differ - expected: '32', found: '1'