Submission #910968
Source Code Expand
#include <bits/stdc++.h> using namespace std; typedef long long ll; #define rep(i,n) for(int (i)=0;(i)<(int)(n);++(i)) #define each(itr,c) for(__typeof(c.begin()) itr=c.begin(); itr!=c.end(); ++itr) #define all(x) (x).begin(),(x).end() #define pb push_back #define fi first #define se second int main() { string ok="Possible", ng="Impossible"; int n; scanf(" %d", &n); vector<int> a(n); rep(i,n) scanf(" %d", &a[i]); if(n==2) { string ans=ng; if(a[0]==1 && a[1]==1) ans=ok; cout << ans << endl; return 0; } sort(all(a)); int max_dist=a[n-1]; int min_dist=max_dist/2+max_dist%2; vector<int> ct(n,0); rep(i,n) ++ct[a[i]]; string ans=ok; for(int i=0; i<min_dist; ++i) { if(ct[i]>0) ans=ng; } if(ct[min_dist] != 1+max_dist%2) ans=ng; for(int i=min_dist+1; i<=max_dist; ++i) { if(ct[i]<2) ans=ng; } cout << ans << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Tree Restoring |
User | imulan |
Language | C++14 (GCC 5.4.1) |
Score | 700 |
Code Size | 1024 Byte |
Status | AC |
Exec Time | 3 ms |
Memory | 256 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:17:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf(" %d", &n); ^ ./Main.cpp:19:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] rep(i,n) scanf(" %d", &a[i]); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 700 / 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 | 3 ms | 256 KB |
almostline1 | AC | 3 ms | 256 KB |
almostline2 | AC | 3 ms | 256 KB |
almostline3 | AC | 3 ms | 256 KB |
can0 | AC | 3 ms | 256 KB |
can1 | AC | 3 ms | 256 KB |
can2 | AC | 3 ms | 256 KB |
can3 | AC | 3 ms | 256 KB |
can4 | AC | 3 ms | 256 KB |
can5 | AC | 3 ms | 256 KB |
can6 | AC | 3 ms | 256 KB |
deg0 | AC | 3 ms | 256 KB |
deg1 | AC | 3 ms | 256 KB |
deg2 | AC | 3 ms | 256 KB |
deg3 | AC | 3 ms | 256 KB |
example0 | AC | 3 ms | 256 KB |
example1 | AC | 3 ms | 256 KB |
example2 | AC | 3 ms | 256 KB |
example3 | AC | 3 ms | 256 KB |
example4 | AC | 3 ms | 256 KB |
example5 | AC | 3 ms | 256 KB |
handmade0 | AC | 3 ms | 256 KB |
line0 | AC | 3 ms | 256 KB |
line1 | AC | 3 ms | 256 KB |
line2 | AC | 3 ms | 256 KB |
line3 | AC | 3 ms | 256 KB |
ng10 | AC | 3 ms | 256 KB |
ng11 | AC | 3 ms | 256 KB |
ng12 | AC | 3 ms | 256 KB |
ng13 | AC | 3 ms | 256 KB |
ng20 | AC | 3 ms | 256 KB |
ng21 | AC | 3 ms | 256 KB |
ng22 | AC | 3 ms | 256 KB |
ng23 | AC | 3 ms | 256 KB |
plus0 | AC | 3 ms | 256 KB |
plus1 | AC | 3 ms | 256 KB |
plus2 | AC | 3 ms | 256 KB |
plus3 | AC | 3 ms | 256 KB |
rand0 | AC | 3 ms | 256 KB |
rand1 | AC | 3 ms | 256 KB |
rand2 | AC | 3 ms | 256 KB |
star0 | AC | 3 ms | 256 KB |
star1 | AC | 3 ms | 256 KB |
star2 | AC | 3 ms | 256 KB |
star3 | AC | 3 ms | 256 KB |