Submission #1354627
Source Code Expand
#include<stdio.h> #include<assert.h> #include<vector> #include<string.h> #include<algorithm> #include<memory.h> #include<cmath> #include<string> #include<iostream> #include<set> #include<unordered_set> #include<map> #include<queue> #include<functional> #include<list> using namespace std; typedef long long ll; typedef pair<int,int> pii; typedef pair<ll,ll> pll; typedef pair<double, double> pdd; typedef tuple<int,int,int> t3; const int MX = 200005; const int MM = 1000000007; int cnt[MX]; int N, a; int main() { scanf("%d", &N); for(int i = 1; i <= N; i++) scanf("%d", &a), cnt[a]++; int mx = N, mn; while(cnt[mx] == 0) mx--; mn = (mx+1) / 2; if( mx%2 == 1 && cnt[mn] == 2 || mx%2 == 0 && cnt[mn] == 1); else return !printf("Impossible\n"); for(int i = 1; i < mn; i++) if( cnt[i] ) return !printf("Impossible\n"); for(int i = mn+1; i <= mx; i++) if(cnt[i] < 2 ) return !printf("Impossible\n"); printf("Possible\n"); }
Submission Info
Submission Time | |
---|---|
Task | C - Tree Restoring |
User | zigui |
Language | C++14 (GCC 5.4.1) |
Score | 700 |
Code Size | 982 Byte |
Status | AC |
Exec Time | 1 ms |
Memory | 256 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:33:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &N); ^ ./Main.cpp:34:55: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(int i = 1; i <= N; i++) scanf("%d", &a), cnt[a]++; ^
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 | 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 | 1 ms | 256 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 | AC | 1 ms | 256 KB |
ng21 | AC | 1 ms | 256 KB |
ng22 | AC | 1 ms | 256 KB |
ng23 | AC | 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 |