Submission #1815015
Source Code Expand
#include <bits/stdc++.h> using namespace std; const int NMAX = 105; int n, a[NMAX]; int main(){ //freopen("input.txt","r",stdin); cin >> n; int tmp, h = 0; memset(a, 0, sizeof(a)); for(int i = 1; i <= n; i++) { cin >> tmp; h = max(h, tmp); a[tmp]++; } bool kt = true; int t = h/2 + h%2; if(a[1] != 0){ if(n == 2 && a[1] == 2)kt = true; else if(n > 2 && a[1] == 1){ for(int i = 3; i <= h; i++) if(a[i] > 0){ kt = false; break; } if(a[2] == 1 && kt) kt = false; }else kt = false; }else{ for(int i = h; i >= 1; i--){ if(i < t && a[i] > 0){ //cout <<'1'; kt = false; break; } if(i == t && a[i] == 0){ kt = false; break; } if(i > t && a[i] < 2){ //cout << '2'; kt = false; break; } } } if(h > n-1) kt = false; if(kt) cout << "Possible"; else cout << "Impossible"; }
Submission Info
Submission Time | |
---|---|
Task | C - Tree Restoring |
User | vjudge5 |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 1103 Byte |
Status | WA |
Exec Time | 3 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 | 3 ms | 384 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 | WA | 1 ms | 256 KB |
ng11 | WA | 1 ms | 256 KB |
ng12 | WA | 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 |