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Submission #998681

# Submission time Handle Problem Language Result Execution time Memory
998681 2024-06-14T14:00:18 Z adkjt Lasers (NOI19_lasers) C++14
0 / 100
 52 ms 9552 KB 
#include<bits/stdc++.h>
using namespace std;
#define pii pair<int,int>
#define f first
#define s second
int qs[555555];
set<pii> s;
int main()
{
    int l,q;cin>>l>>q;
    while(q--)
    {
        int n;cin>>n;
        for(int i=1;i<=n;i++)
        {
            int x;cin>>x;
            qs[i]=qs[i-1];
            qs[i]+=x;
        }
        int g=l-qs[n],r=l-qs[n]+qs[1];
        if(n==1&&qs[1]>n/2)
        {
            s.insert({l-qs[1]+1,qs[1]});
        }
        for(int i=2;i<=n;i++)
        {
            if(g>=qs[i]-qs[i-1]) continue;
            int L=r+1,R=r+qs[i]-qs[i-1]-g;
            s.insert({L,R});
            //cout<<r<<' '<<L<<' '<<R<<'\n';
            r+=qs[i]-qs[i-1];
        }
    }
    int cnt=0,R=0;
    for(auto it=s.begin();it!=s.end();it++)
    {
        int u=(*it).f,v=(*it).s;
        if(v<R) continue;
        if(u>R)
        cnt+=v-u+1;
        else if(u<R)
            cnt+=v-R;
        R=v;
        //cout<<u<<' '<<v<<'\n';
    }
    cout<<cnt;
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 52 ms 9552 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 22.0

# Verdict Execution time Memory Grader output
1 Incorrect 52 ms 9552 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -