Submission #143061

#	Time	Username	Problem	Language	Result	Execution time	Memory
143061		JovanK26	Street Lamps (APIO19_street_lamps)	C++14	20 / 100	78 ms	73996 KiB

street_lamps

#include <bits/stdc++.h>

using namespace std;

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n,q;
    cin >> n >> q;
    if(n<=100 && q<=100)
    {

        string s;
    cin >> s;
    int a[n][q];
    for(int i=0;i<n;i++)
    {
        a[i][0]=s[i]-'0';
    }
    string qry;
    int l,r;
    int t;
    for(int i=1;i<=q;i++)
    {
        cin >> qry;
        if(qry=="toggle")
        {
            cin >> t;
            for(int j=0;j<n;j++)
            {
                a[j][i]=a[j][i-1];
            }
            a[t-1][i]^=1;
        }
        else
        {
            cin >> l >> r;
            long long rez=0;
            for(int time=0;time<i;time++)
            {
                bool check=0;
                for(int j=l-1;j<r-1;j++)
                {
                    if(!a[j][time])
                    {
                        check=1;
                        break;
                    }
                }
               if(!check)rez++;
            }
            for(int j=0;j<n;j++)
            {
                a[j][i]=a[j][i-1];
            }
            cout << rez <<'\n';
        }
    }
    }
    else
    {
        bitset<300001> bs1[n];
        bitset<300001> bs2[q];
        cin >> bs2[0];
        string qry;
        int l,r;
        int p;
        for(int i=0;i<q;i++)
        {
            cin >> qry;
            if(qry=="toggle")
            {
                cin >> p;
                bitset<300001> tmp;
                tmp[p]=1;
                bs2[i+1]=bs2[i]^tmp;
            }
            else
            {
                cin >> l >> r;
                int rez=0;
                for(int j=0;j<=i;j++)
                {
                    rez+=bs2[i][l-1];
                }
                bitset<300001> tmp;
                bs2[i+1]=bs2[i]^tmp;
                cout << rez <<'\n';
            }
        }
    }

    return 0;
}

Compilation message (stderr)

street_lamps.cpp: In function 'int main()':
street_lamps.cpp:64:24: warning: unused variable 'bs1' [-Wunused-variable]
         bitset<300001> bs1[n];
                        ^~~

• Subtask 1: 20 / 20
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20