Submission #7059782
Source Code Expand
#include<bits/stdc++.h> using namespace std; int main(){ int n; cin >> n; int tmp = 0; int root = 0; for (int i = 2; i <= n; i++){ int dist; cout << "? " << 1 << " " << i << endl; cin >> dist; if (dist > tmp){ root = i; tmp = dist; } } int ans = 0; for (int i = 1; i <= n; i++){ if (i == root) continue; int dist; cout << "? " << root << " " << i << endl; cin >> dist; ans = max(ans, dist); } cout << "! " << ans << endl; }
Submission Info
Submission Time | |
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Task | D - 高橋くんと木の直径 |
User | lemon_ |
Language | C++14 (GCC 5.4.1) |
Score | 100 |
Code Size | 594 Byte |
Status | AC |
Exec Time | 7 ms |
Memory | 720 KB |
Judge Result
Set Name | Sample | Subtask1 | All | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 20 / 20 | 80 / 80 | ||||||
Status |
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Set Name | Test Cases |
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Sample | subtask0_0.txt |
Subtask1 | subtask1_0.txt, subtask1_1.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask1_14.txt, subtask1_15.txt, subtask1_16.txt, subtask1_17.txt, subtask1_18.txt, subtask1_19.txt, subtask1_2.txt, subtask1_20.txt, subtask1_3.txt, subtask1_4.txt, subtask1_5.txt, subtask1_6.txt, subtask1_7.txt, subtask1_8.txt, subtask1_9.txt, subtask0_0.txt |
All | subtask0_0.txt, subtask1_0.txt, subtask1_1.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask1_14.txt, subtask1_15.txt, subtask1_16.txt, subtask1_17.txt, subtask1_18.txt, subtask1_19.txt, subtask1_2.txt, subtask1_20.txt, subtask1_3.txt, subtask1_4.txt, subtask1_5.txt, subtask1_6.txt, subtask1_7.txt, subtask1_8.txt, subtask1_9.txt, subtask2_0.txt, subtask2_1.txt, subtask2_10.txt, subtask2_11.txt, subtask2_12.txt, subtask2_13.txt, subtask2_14.txt, subtask2_15.txt, subtask2_16.txt, subtask2_17.txt, subtask2_18.txt, subtask2_19.txt, subtask2_2.txt, subtask2_3.txt, subtask2_4.txt, subtask2_5.txt, subtask2_6.txt, subtask2_7.txt, subtask2_8.txt, subtask2_9.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
subtask0_0.txt | AC | 3 ms | 720 KB |
subtask1_0.txt | AC | 7 ms | 720 KB |
subtask1_1.txt | AC | 7 ms | 720 KB |
subtask1_10.txt | AC | 6 ms | 716 KB |
subtask1_11.txt | AC | 7 ms | 720 KB |
subtask1_12.txt | AC | 7 ms | 720 KB |
subtask1_13.txt | AC | 7 ms | 720 KB |
subtask1_14.txt | AC | 7 ms | 720 KB |
subtask1_15.txt | AC | 7 ms | 716 KB |
subtask1_16.txt | AC | 7 ms | 720 KB |
subtask1_17.txt | AC | 7 ms | 720 KB |
subtask1_18.txt | AC | 7 ms | 716 KB |
subtask1_19.txt | AC | 7 ms | 720 KB |
subtask1_2.txt | AC | 7 ms | 720 KB |
subtask1_20.txt | AC | 3 ms | 720 KB |
subtask1_3.txt | AC | 7 ms | 720 KB |
subtask1_4.txt | AC | 7 ms | 720 KB |
subtask1_5.txt | AC | 7 ms | 720 KB |
subtask1_6.txt | AC | 7 ms | 720 KB |
subtask1_7.txt | AC | 7 ms | 720 KB |
subtask1_8.txt | AC | 7 ms | 720 KB |
subtask1_9.txt | AC | 7 ms | 720 KB |
subtask2_0.txt | AC | 6 ms | 720 KB |
subtask2_1.txt | AC | 7 ms | 716 KB |
subtask2_10.txt | AC | 7 ms | 720 KB |
subtask2_11.txt | AC | 7 ms | 720 KB |
subtask2_12.txt | AC | 7 ms | 720 KB |
subtask2_13.txt | AC | 7 ms | 720 KB |
subtask2_14.txt | AC | 7 ms | 720 KB |
subtask2_15.txt | AC | 7 ms | 720 KB |
subtask2_16.txt | AC | 7 ms | 720 KB |
subtask2_17.txt | AC | 7 ms | 720 KB |
subtask2_18.txt | AC | 7 ms | 720 KB |
subtask2_19.txt | AC | 6 ms | 720 KB |
subtask2_2.txt | AC | 7 ms | 716 KB |
subtask2_3.txt | AC | 7 ms | 716 KB |
subtask2_4.txt | AC | 7 ms | 720 KB |
subtask2_5.txt | AC | 7 ms | 720 KB |
subtask2_6.txt | AC | 7 ms | 720 KB |
subtask2_7.txt | AC | 7 ms | 720 KB |
subtask2_8.txt | AC | 7 ms | 720 KB |
subtask2_9.txt | AC | 7 ms | 720 KB |