Submission #2238522
Source Code Expand
#include<cstdio> #include<algorithm> using namespace std; int max(int a,int b){return a>b?a:b;} int n,a[105],ans[105]; int main() { scanf("%d",&n); for(int i=1;i<=n;i++) scanf("%d",&a[i]); sort(a+1,a+1+n); if(a[n]!=a[n-1]){printf("Impossible");return 0;} ans[1]=1;ans[1+a[n-1]]=1; for(int i=n-2;i>=1;i--) { if(a[i]<((a[n]+1)>>1)){printf("Impossible");return 0;} if(ans[a[i]+1]==1) { if(ans[1+a[n-1]-a[i]]==0) ans[1+a[n-1]-a[i]]=1; else if(a[i]-1<((a[n]+1)>>1)){printf("Impossible");return 0;} } else ans[a[i]+1]=1; } for(int i=1;i<=1+a[n-1];i++) if(ans[i]==0){printf("Impossible");return 0;} printf("Possible"); return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Tree Restoring |
User | vjudge2 |
Language | C++14 (GCC 5.4.1) |
Score | 700 |
Code Size | 650 Byte |
Status | AC |
Exec Time | 1 ms |
Memory | 128 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:8:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ ./Main.cpp:9:41: 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[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 | 1 ms | 128 KB |
almostline1 | AC | 1 ms | 128 KB |
almostline2 | AC | 1 ms | 128 KB |
almostline3 | AC | 1 ms | 128 KB |
can0 | AC | 1 ms | 128 KB |
can1 | AC | 1 ms | 128 KB |
can2 | AC | 1 ms | 128 KB |
can3 | AC | 0 ms | 128 KB |
can4 | AC | 1 ms | 128 KB |
can5 | AC | 1 ms | 128 KB |
can6 | AC | 1 ms | 128 KB |
deg0 | AC | 1 ms | 128 KB |
deg1 | AC | 1 ms | 128 KB |
deg2 | AC | 1 ms | 128 KB |
deg3 | AC | 1 ms | 128 KB |
example0 | AC | 1 ms | 128 KB |
example1 | AC | 1 ms | 128 KB |
example2 | AC | 1 ms | 128 KB |
example3 | AC | 1 ms | 128 KB |
example4 | AC | 0 ms | 128 KB |
example5 | AC | 1 ms | 128 KB |
handmade0 | AC | 0 ms | 128 KB |
line0 | AC | 1 ms | 128 KB |
line1 | AC | 1 ms | 128 KB |
line2 | AC | 1 ms | 128 KB |
line3 | AC | 1 ms | 128 KB |
ng10 | AC | 1 ms | 128 KB |
ng11 | AC | 1 ms | 128 KB |
ng12 | AC | 1 ms | 128 KB |
ng13 | AC | 1 ms | 128 KB |
ng20 | AC | 1 ms | 128 KB |
ng21 | AC | 1 ms | 128 KB |
ng22 | AC | 1 ms | 128 KB |
ng23 | AC | 1 ms | 128 KB |
plus0 | AC | 1 ms | 128 KB |
plus1 | AC | 1 ms | 128 KB |
plus2 | AC | 1 ms | 128 KB |
plus3 | AC | 1 ms | 128 KB |
rand0 | AC | 1 ms | 128 KB |
rand1 | AC | 1 ms | 128 KB |
rand2 | AC | 1 ms | 128 KB |
star0 | AC | 1 ms | 128 KB |
star1 | AC | 1 ms | 128 KB |
star2 | AC | 1 ms | 128 KB |
star3 | AC | 1 ms | 128 KB |