This needs to be stopped, it is ruining the integrity of the contests. It ruins not only my experience, but also the experience of others.

To the HQ: Would it be possible to implement a relatively weak (but relevant) "duck test" in the plagiarism checker? The comments are not the only suspicious thing in the code, also the indents are broken here and there. Most of the time the participant would be using one environment for a contest, so the indents and codestyle would be mostly consistent throughout a contest (and many times across multiple contests as well). Therefore detecting inconsistencies in the codestyle would help find suspicious code.

p.s. Please note that "weak" in this context does not mean "powerless", it means "not forceful" as duck tests can cause false positives

LMFAO THE CLEAR PROOF LOL

Auto comment: topic has been updated by Whimpers (previous revision, new revision, compare).

Okay, I checked other submissions of his in the same contest, and found lines in other problems' submissions with variables with a very certain same name (g_of_sum, additional_value_sum). Now I think he intentionally tried to fool the detection.

Hi guys, I also tried to find out and concluded by three factors-

1) This blog.

2) By Poremax738

3) Watching most of the users who submitted in Python and a few in C++.

int rep(vector<int> &pos,int j) {
    int temp=0;
    int p=j;
    while(p+1) {
        ++temp;
        p=pos[p];
        if(p-j) 
        continue;
        else
        return temp;
    }
    return -1;
}
void solve() {
    int n; cin>>n;
    string str; cin>>str;
    vector<int> pos(26,-1);
    int ref[26];
    for(int i=0; i<26; i++) 
        pos[i]=-1,ref[i]=1;
    for(int i=0; i<n; i++) {
        if(pos[str[i]-'a']==-1)  {
            for(int j=0; j<26; j++) {
                if(ref[j] and j!=str[i]-'a') {
                    pos[str[i]-'a']=j;
                    int z=rep(pos,j);
                    if(z!=-1 and z!=26)
                    continue;
                    else {
                        ref[j]=0;
                        break;
                    }
                }
            }
        }
        cout<<char(pos[str[i]-'a']+'a');
    }

n,k=list(map(int,input().split())) 
p,q=[{},{}] 
a,b,c,s=[[0]*10000,[0]*1001,[0]*1001,0] 
for i in range(1,n+1): 
    d=0 
    a[i]=list(map(int,input().split())) 
    for j in range(0,k): 
        d=d*3+a[i][j] 
    if not d in p: 
        p[d]=1 
    else: 
        p[d]=p[d]+1 
    b[i]=d 
for i in range(1,n): 
    for j in range(i+1,n+1): 
        d=0 
        for l in range(0,k): 
            d*=3 
            if a[i][l]==a[j][l]: 
                d+=a[i][l] 
            else: 
                d+=3-a[i][l]-a[j][l] 
        if not d in p: 
            continue; 
        t=p[d] 
        if not b[i] in q: 
            q[b[i]]=t 
        else: 
            q[b[i]]+=t 
        if not b[j] in q: 
            q[b[j]]=t 
        else: 
            q[b[j]]+=t 
        if not d in q: 
            q[d]=t 
        else: 
            q[d]+=t 
for i in q: 
    s+=q[i]//3*(q[i]//3-1)//2 
print(s)

Due to this solution leak, the ranking of many users(including me) was seriously affected and lowered considerably.

MikeMirzayanov I know it's a big task but please personally look at the solutions of C and D, especially from those who performed exceptionally good in this contest.

Happy Coding!

Not only D was leaked last contest, But also C! Leaderboards are so messed for the last contest, cheaters doing both C and D was shit See Similar Submissions for C below,

174427324 174419555 174427324 174421050 174415745 174418707 Those are just few.

why so many cheaters,fuck them.

I never cheat though I lose my rating.