Submission #2114760
Source Code Expand
#include<iostream> #include<cstdio> #include<vector> #include<string> #include<cstring> #include<functional> #include<stack> #include<queue> #include <iomanip> #include<map> #include<limits> #include<cmath> #include<algorithm> #include<bitset> #include<utility> #include<complex> #include<cstdlib> #include<set> #include<cctype> #define DBG cerr << '!' << endl; #define REP(i,n) for(int (i) = (0);(i) < (n);++i) #define rep(i,s,g) for(int (i) = (s);(i) < (g);++i) #define rrep(i,s,g) for(int (i) = (s);i >= (g);--(i)) #define PB push_back #define MP make_pair #define FI first #define SE second #define SHOW1d(v,n) {for(int i = 0;i < (n);i++)cerr << v[i] << ' ';cerr << endl << endl;} #define SHOW2d(v,i,j) {for(int aaa = 0;aaa < i;aaa++){for(int bbb = 0;bbb < j;bbb++)cerr << v[aaa][bbb] << ' ';cerr << endl;}cerr << endl;} #define ALL(v) v.begin(),v.end() #define Decimal fixed<<setprecision(20) using namespace std; typedef long long ll; typedef pair<ll, ll> P; int main() { int n; cin >> n; vector<int> v(n); REP(i, n)cin >> v[i]; sort(ALL(v)); if (v[0] == v[2]) { cout << "Impossible" << endl; return 0; } int cou = 0; int now = v[0]; REP(i, n) { if (now == v[i]) { cou++; } else { if (i > 1 && cou < 2) { cout << "Impossible" << endl; return 0; } cou = 1; now = v[i]; } } if (cou == 1) { cout << "Impossible" << endl; return 0; } else { if (v[0] == v[1]) { if (v[0] * 2 - 1 == v[v.size() - 1]) { cout << "Possible" << endl; return 0; } } else { if (v[0] * 2 == v[v.size() - 1]) { cout << "Possible" << endl; return 0; } } } cout << "Impossible" << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Tree Restoring |
User | seica |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 1807 Byte |
Status | WA |
Exec Time | 2 ms |
Memory | 384 KB |
Judge Result
Set Name | Sample | All | ||||||
---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 700 | ||||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | example0, example1, example2, example3, example4, example5 |
All | almostline0, almostline1, almostline2, almostline3, can0, can1, can2, can3, can4, can5, can6, deg0, deg1, deg2, deg3, example0, example1, example2, example3, example4, example5, handmade0, line0, line1, line2, line3, ng10, ng11, ng12, ng13, ng20, ng21, ng22, ng23, plus0, plus1, plus2, plus3, rand0, rand1, rand2, star0, star1, star2, star3 |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
almostline0 | AC | 1 ms | 256 KB |
almostline1 | AC | 1 ms | 256 KB |
almostline2 | AC | 1 ms | 256 KB |
almostline3 | AC | 1 ms | 256 KB |
can0 | AC | 1 ms | 256 KB |
can1 | AC | 1 ms | 256 KB |
can2 | AC | 1 ms | 256 KB |
can3 | AC | 1 ms | 256 KB |
can4 | AC | 1 ms | 256 KB |
can5 | AC | 1 ms | 256 KB |
can6 | AC | 1 ms | 256 KB |
deg0 | AC | 1 ms | 256 KB |
deg1 | AC | 1 ms | 256 KB |
deg2 | AC | 1 ms | 256 KB |
deg3 | AC | 1 ms | 256 KB |
example0 | AC | 1 ms | 256 KB |
example1 | AC | 1 ms | 256 KB |
example2 | AC | 1 ms | 256 KB |
example3 | AC | 1 ms | 256 KB |
example4 | AC | 1 ms | 256 KB |
example5 | AC | 1 ms | 256 KB |
handmade0 | AC | 1 ms | 256 KB |
line0 | AC | 1 ms | 256 KB |
line1 | AC | 1 ms | 256 KB |
line2 | AC | 2 ms | 384 KB |
line3 | AC | 1 ms | 256 KB |
ng10 | AC | 1 ms | 256 KB |
ng11 | AC | 1 ms | 256 KB |
ng12 | AC | 1 ms | 256 KB |
ng13 | AC | 1 ms | 256 KB |
ng20 | WA | 1 ms | 256 KB |
ng21 | WA | 1 ms | 256 KB |
ng22 | WA | 1 ms | 256 KB |
ng23 | WA | 1 ms | 256 KB |
plus0 | AC | 1 ms | 256 KB |
plus1 | AC | 1 ms | 256 KB |
plus2 | AC | 1 ms | 256 KB |
plus3 | AC | 1 ms | 256 KB |
rand0 | AC | 1 ms | 256 KB |
rand1 | AC | 1 ms | 256 KB |
rand2 | AC | 1 ms | 256 KB |
star0 | AC | 1 ms | 256 KB |
star1 | AC | 1 ms | 256 KB |
star2 | AC | 1 ms | 256 KB |
star3 | AC | 1 ms | 256 KB |