Submission #1354719
Source Code Expand
#include <bits/stdc++.h> using namespace std; #define REP(i,n) for(int (i)=0;(i)<(int)(n);(i)++) #define REPO(i,n) for(int (i)=1; (i)<=(int)(n); (i)++) #define SZ(v) ((int)(v).size()) #define ALL(v) (v).begin(),(v).end() #define one first #define two second typedef long long ll; typedef pair<int, int> pi; const int INF = 0x3f2f1f0f; const ll LINF = 1ll * INF * INF; const int MAX_N = 2e5 + 100; int N, Nr[MAX_N], Cnt[MAX_N]; int impos() {puts("Impossible"); return 0;} int main() { cin >> N; REP(i, N) scanf("%d", &Nr[i]), Cnt[Nr[i]]++; int maxV = -1, minV = N+1; REP(i, N) maxV = max(maxV, Nr[i]), minV = min(minV, Nr[i]); if(minV != (maxV + 1) / 2 || Cnt[minV] > 2) return impos(); if(maxV % 2 == 0 && Cnt[minV] == 2) return impos(); if(maxV % 2 == 1 && Cnt[minV] == 1) return impos(); for(int i=minV+1; i<=maxV; i++) if(Cnt[i] < 2) return impos(); puts("Possible"); return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Tree Restoring |
User | kajebiii |
Language | C++14 (GCC 5.4.1) |
Score | 700 |
Code Size | 930 Byte |
Status | AC |
Exec Time | 1 ms |
Memory | 256 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:22:45: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] REP(i, N) scanf("%d", &Nr[i]), Cnt[Nr[i]]++; ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 700 / 700 | ||||
Status |
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Set Name | Test Cases |
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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 |