878C - Tournament - CodeForces Solution


data structures graphs *2700

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C++ Code:

#include <bits/stdc++.h>
using namespace std;
int n, k;

struct node{
    int sz;
    int mx[15], mn[15];
    node(){
        memset(mx, 0, sizeof(mx));
        memset(mn, 0x3f, sizeof(mn));
    }
    friend bool operator <(node a, node b){
        for(int i = 1; i <= k; i++){
            if(a.mx[i] > b.mn[i]){
                return false;
            }
        }
        return true;
    }
};

set<node> s;
set<node>::iterator it;

int main(){
    cin >> n >> k;
    node t;
    for(int i = 1; i <= n; i++){
        t.sz = 1;
        for(int j = 1; j <= k; j++){
            scanf("%d", &t.mn[j]);
            t.mx[j] = t.mn[j];
        }
        while((it = s.find(t)) != s.end()){
            t.sz += it->sz;
            for(int j = 1; j <= k; j++){
                t.mn[j] = min(t.mn[j], it->mn[j]);
                t.mx[j] = max(t.mx[j], it->mx[j]);
            }
            s.erase(it);
        }
        s.insert(t);
        printf("%d\n", (--s.end())->sz);
    }
    
    return 0;
}


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