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The 2nd Universal Cup Finals is coming! Check out our event page, schedule, and competition rules!
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#378517 | #8566. Can We Still Qualify For Semifinals? | ucup-team052# | WA | 15ms | 3844kb | C++23 | 1.2kb | 2024-04-06 13:20:32 | 2024-04-06 13:20:32 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
#define N 55
char s[N];
int a[N];
int n,m=10;
int mat[N][2],p[N],win[N],cnt;
void work()
{
cin>>n; scanf("%s",s+1);
for(int i=1;i<=n;i++) a[i]=s[i]-'0';
if(n<=20) printf("YES\n");
else
{
int ned=0;
for(int j=n+1;j<=cnt;j++) if(j%5!=1) ned++;
for(int j=0;j<1<<ned;j++)
{
int tw=0;
for(int i=n+1;i<=cnt;i++)
{
if(i%5==1) a[i]=1;
else a[i]=j>>(tw++)&1;
}
for(int i=1;i<=m;i++) win[i]=0;
for(int i=1;i<=cnt;i++)
{
if(a[i]) win[mat[i][0]]++;
else win[mat[i][1]]++;
}
int bad=0;
for(int i=2;i<=m;i++) if(win[i]>win[1]) bad++;
if(bad<=3)
{
printf("YES\n");
return ;
}
}
printf("NO\n");
}
}
signed main()
{
#ifdef xay5421
freopen("a.in","r",stdin);
#endif
for(int i=1;i<=m;i++) p[i]=i;
auto ins=[&]()
{
for(int i=1;i<=5;i++)
{
cnt++;
mat[cnt][0]=p[i],mat[cnt][1]=p[m-i+1];
}
};
ins();
for(int i=1;i<=9;i++)
{
int t=p[m];
for(int j=m;j>2;j--) p[j]=p[j-1];
p[2]=t;
ins();
}
// for(int i=1;i<=cnt;i++) printf("%d %d\n",mat[i][0],mat[i][1]);
int T; cin>>T;
while(T--) work();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3832kb
input:
3 3 111 25 1000010101111111111010100 35 01111011110111101111011110111101111
output:
YES YES NO
result:
ok 3 token(s): yes count is 2, no count is 1
Test #2:
score: 0
Accepted
time: 0ms
memory: 3844kb
input:
10 16 0110000001010100 17 01111000110110101 15 001100010101111 16 0010101010011100 19 0000000100010110100 16 0011101010011100 18 011110010001100000 18 000110101001100011 20 01100010000100100100 15 001000111001101
output:
YES YES YES YES YES YES YES YES YES YES
result:
ok 10 token(s): yes count is 10, no count is 0
Test #3:
score: -100
Wrong Answer
time: 15ms
memory: 3812kb
input:
10 37 0110000001010100011101001011100110001 39 000100111101101001100101101000000000100 35 00111000100111100101011010111100100 33 010000010001110010110001101110001 30 000100010100000010010110101010 31 0000101000011010101001010000000 44 00001000000111101011010110000101100011000100 42 01111011110001001...
output:
NO NO NO NO YES NO NO NO NO NO
result:
wrong answer expected NO, found YES [5th token]