Submission #7478421
Source Code Expand
#include <bits/stdc++.h> using namespace std; # define REP(i,n) for (int i=0;i<(n);++i) # define PER(i,n) for (int i=(N-1);i>=0;--i) # define rep(i,a,b) for(int i=a;i<(b);++i) # define p(s) std::cout << s ; # define pl(s) std::cout << s << endl; # define printIf(j,s1,s2) cout << (j ? s1 : s2) << endl; # define YES(j) cout << (j ? "YES" : "NO") << endl; # define Yes(j) std::cout << (j ? "Yes" : "No") << endl; # define yes(j) std::cout << (j ? "yes" : "no") << endl; # define all(v) v.begin(),v.end() # define showVector(v) REP(i,v.size()){p(v[i]);p(" ")} pl("") template<class T> inline bool chmin(T &a, T b){ if(a > b) { a = b; return true;} return false;} template<class T> inline bool chmax(T &a, T b){ if(a < b) { a = b; return true;} return false;} typedef long long int ll; typedef pair<ll,ll> P_ii; typedef pair<double,double> P_dd; template<class T> vector<T> make_vec(size_t a){ return vector<T>(a); } template<class T, class... Ts> auto make_vec(size_t a, Ts... ts){ return vector<decltype(make_vec<T>(ts...))>(a, make_vec<T>(ts...)); } template<typename T,typename V> typename enable_if<is_class<T>::value==0>::type fill_v(T &t,const V &v){t=v;} template<typename T,typename V> typename enable_if<is_class<T>::value!=0>::type fill_v(T &t,const V &v){ for(auto &e:t) fill_v(e,v); } const int MOD = 1000000007; const int inf=1e9+7; const ll longinf=1LL<<60 ; int main(){ int N; cin >> N; ll d = 0; int j = 0; for(int i = 2; i <= N; i++){ printf("? %d %d\n", 1, i); ll dist; cin >> dist; if(d < dist){ d = dist; j = i; } } ll ans = 0; for(int i = 1; i <= N ; i++) { if(i == j) continue; printf("? %d %d\n", j, i); ll dist; cin >> dist; chmax(ans, dist); } cout << "! " << ans << endl; return 0; }
Submission Info
Submission Time | |
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Task | D - 高橋くんと木の直径 |
User | azz |
Language | C++14 (GCC 5.4.1) |
Score | 100 |
Code Size | 1893 Byte |
Status | AC |
Exec Time | 7 ms |
Memory | 724 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 | 4 ms | 720 KB |
subtask1_0.txt | AC | 7 ms | 720 KB |
subtask1_1.txt | AC | 7 ms | 720 KB |
subtask1_10.txt | AC | 7 ms | 716 KB |
subtask1_11.txt | AC | 7 ms | 724 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 | 724 KB |
subtask1_16.txt | AC | 7 ms | 720 KB |
subtask1_17.txt | AC | 7 ms | 720 KB |
subtask1_18.txt | AC | 7 ms | 720 KB |
subtask1_19.txt | AC | 7 ms | 724 KB |
subtask1_2.txt | AC | 7 ms | 724 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 | 724 KB |
subtask1_7.txt | AC | 7 ms | 724 KB |
subtask1_8.txt | AC | 7 ms | 720 KB |
subtask1_9.txt | AC | 7 ms | 720 KB |
subtask2_0.txt | AC | 7 ms | 720 KB |
subtask2_1.txt | AC | 7 ms | 724 KB |
subtask2_10.txt | AC | 7 ms | 720 KB |
subtask2_11.txt | AC | 7 ms | 720 KB |
subtask2_12.txt | AC | 7 ms | 724 KB |
subtask2_13.txt | AC | 7 ms | 716 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 | 716 KB |
subtask2_2.txt | AC | 7 ms | 720 KB |
subtask2_3.txt | AC | 6 ms | 720 KB |
subtask2_4.txt | AC | 7 ms | 720 KB |
subtask2_5.txt | AC | 7 ms | 724 KB |
subtask2_6.txt | AC | 7 ms | 716 KB |
subtask2_7.txt | AC | 7 ms | 716 KB |
subtask2_8.txt | AC | 7 ms | 716 KB |
subtask2_9.txt | AC | 7 ms | 720 KB |