Submission #548769

#	Time	Username	Problem	Language	Result	Execution time	Memory
548769		ala2	Street Lamps (APIO19_street_lamps)	C++14	20 / 100	3505 ms	1360 KiB

street_lamps

#include <iostream>

using namespace std;
int ans[110][110];
string s;

int f(int i,int j)
{
    for(int k=i;k<j;k++)
    {
        if(s[k]=='0')
            return 0;
    }
    return 1;
}
int main()
{
    int n,m;
    cin>>n>>m;
    //string s;
    cin>>s;
    while(m--)
    {for(int i=0;i<n;i++)
        {
            for(int j=i+1;j<=n;j++)
            {
                if(f(i,j))
                    ans[i][j]++;
            }
        }
        string c;
        cin>>c;
        if(c[0]=='q')
        {
            int a,b;
            cin>>a>>b;
            a--;
            b--;
            cout<<ans[a][b]<<endl;
        }
        else
        {
            int i;
            cin>>i;
            i--;
            if(s[i]=='1')
            s[i]='0';
            else s[i]='1';
        }

    }
}

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