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QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #116918 | #6667. Prosjek | youngsystem# | 0 | 44ms | 8224kb | C++20 | 1.9kb | 2023-06-30 10:48:34 | 2024-05-31 18:34:28 |
Judging History
answer
#include<bits/stdc++.h>
#define int long long
using namespace std;
inline int read()
{
int n=0,f=1,ch=getchar();
while(ch<'0'||ch>'9')
{
if(ch=='-')f=-1;
ch=getchar();
}
while(ch>='0'&&ch<='9')
{
n=n*10+ch-'0';
ch=getchar();
}
return n*f;
}
int nx[105],ny[105],tmp;
bool dfs(vector<int> v)
{
if(v.size()==1)
{
for(int i=1;i<=tmp;i++)printf("%lld %lld\n",nx[i],ny[i]);
return true;
}
for(int i=0;i<v.size();i++)
{
for(int j=i+1;j<v.size();j++)
{
if((v[i]+v[j])%2!=0)continue;
vector<int>nv;
for(int k=0;k<v.size();k++)
{
if(k!=i&&k!=j)nv.push_back(v[k]);
}
nx[++tmp]=v[i];
ny[tmp]=v[j];
nv.push_back((v[i]+v[j])/2);
if(dfs(nv)==true)
{
return true;
}
tmp--;
}
}
return false;
}
int a[1000005];
int sta1[1000005],top1;
int sta2[1000005],top2;
signed main()
{
int t,n;
t=read();
for(int greg=1;greg<=t;greg++)
{
n=read();
for(int i=1;i<=n;i++)
{
a[i]=read();
}
if(n<=7)
{
vector<int>v;
for(int i=1;i<=n;i++)v.push_back(a[i]);
if(dfs(v)==false)printf("-1\n");
continue;
}
bool flag=true;
for(int i=1;i<=n;i++)
{
if(a[i]%2!=0)
{
flag=false;
break;
}
}
if(flag==true)
{
top1=top2=0;
for(int i=1;i<=n;i++)
{
if(a[i]%4==0)sta1[++top1]=a[i];
else sta2[++top2]=a[i];
}
for(int i=1;i<=n-2;i++)
{
if(top1>=2)
{
printf("%lld %lld\n",sta1[top1],sta1[top1-1]);
int sth=(sta1[top1]+sta1[top1-1])/2;
top1-=2;
sta1[++top1]=sth;
}
else
{
printf("%lld %lld\n",sta2[top2],sta2[top2-1]);
int sth=(sta2[top2]+sta2[top2-1])/2;
top2-=2;
sta2[++top2]=sth;
}
}
if(top1==2)printf("%lld %lld\n",sta1[1],sta1[2]);
else if(top2==2)printf("%lld %lld\n",sta2[1],sta2[2]);
else printf("%lld %lld\n",sta1[1],sta2[1]);
}
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Subtask #1:
score: 0
Runtime Error
Test #1:
score: 0
Runtime Error
input:
99 4 739880851158065302 19206582949872932 883064254701115295 222072661880779376 7 148399819461615003 209088712310207988 53191076581680214 445068618251612752 230505279594622109 115754892157516718 804173775829453588 2 77979357045500669 41693388829622019 3 341612949433488278 609808714829036935 19994167...
output:
739880851158065302 19206582949872932 883064254701115295 379543717053969117 222072661880779376 631303985877542206 739880851158065302 19206582949872932 883064254701115295 379543717053969117 222072661880779376 631303985877542206 148399819461615003 230505279594622109 209088712310207988 53191076581680214...
result:
Subtask #2:
score: 0
Runtime Error
Test #16:
score: 0
Runtime Error
input:
100 3 3 3 2 3 4 1 1 4 1 3 4 4 6 4 4 2 3 1 2 4 0 2 1 4 3 0 2 0 7 3 3 1 1 3 4 0 2 0 4 4 1 4 2 3 7 4 0 0 3 2 3 4 4 4 2 0 3 7 0 2 2 1 4 2 4 7 3 0 3 1 2 0 3 4 4 3 1 4 6 2 3 0 1 3 4 5 1 4 0 3 4 5 4 2 0 4 2 3 0 1 2 6 4 1 4 2 0 4 7 4 2 4 3 1 3 1 4 1 4 4 0 2 1 1 6 0 3 3 0 0 4 7 4 3 0 3 3 3 4 4 4 1 1 3 6 2 0 ...
output:
-1 -1 1 3 4 4 2 4 1 3 4 4 2 4 4 4 2 2 3 1 2 2 4 2 1 3 4 4 2 4 4 4 2 2 3 1 2 2 4 2 2 4 1 3 0 2 1 3 4 4 2 4 4 4 2 2 3 1 2 2 4 2 2 4 1 3 0 2 0 0 2 0 1 3 4 4 2 4 4 4 2 2 3 1 2 2 4 2 2 4 1 3 0 2 0 0 2 0 3 3 1 1 3 3 4 0 1 3 2 2 1 3 4 4 2 4 4 4 2 2 3 1 2 2 4 2 2 4 1 3 0 2 0 0 2 0 3 3 1 1 3 3 4 0 1 3 2 2 0 ...
result:
Subtask #3:
score: 0
Runtime Error
Test #34:
score: 0
Runtime Error
input:
100000 5 846784256447769304 457696478728961702 128469521648960690 597630796847754190 104256763714529164 5 658897822238868978 472135077337628566 399538027669313322 622703684108675696 425723088635325654 5 917704960887390986 140817562615382054 877934664521057998 782212806618666818 616380973421914538 8 ...
output:
846784256447769304 457696478728961702 597630796847754190 104256763714529164 652240367588365503 350943780281141677 128469521648960690 501592073934753590 846784256447769304 457696478728961702 597630796847754190 104256763714529164 652240367588365503 350943780281141677 128469521648960690 501592073934753...
result:
Subtask #4:
score: 0
Wrong Answer
Test #46:
score: 0
Wrong Answer
time: 44ms
memory: 8224kb
input:
100 211957 911918942087402387 344230223346742784 16289402153237664 528890583619159010 886281719684850237 865484734102017297 321851390502278959 754268375474197153 237414161302130571 135637002716682378 824412491959977735 162505521049217610 246319278060116103 666703181591704279 650875500699154233 96397...
output:
945205410564117397 506489830890255987 705650240624406006 441192426604140330 186919616587700128 605645018889792892 725847620727186692 396282317738746510 298912059620894683 561064969232966601 573421333614273168 429988514426930642 945205410564117397 506489830890255987 705650240624406006 441192426604140...
result:
wrong answer Integer -1 violates the range [0, 10^18] (test case 1)