oj.uz

Submission #440523

# Submission time Handle Problem Language Result Execution time Memory
440523 2021-07-02T11:19:57 Z den_tar Street Lamps (APIO19_street_lamps) C++14
20 / 100
 453 ms 15304 KB 
#include <bits/stdc++.h>

using namespace std;

#define fast ios_base::sync_with_stdio();cin.tie();cout.tie();
#define en cout<<endl;
#define ops cout<<"ops"<<endl;
#define line cout<<"---------------------------"<<endl;
#define fi first
#define se second

typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pllll;
typedef string str;

const ll DIM = 3e5 + 7;
const ll DIMM = 5e4 + 7;
const ll DDIM = 7;
const ll INF = 1e18 + 7;
const ll X = 1e5 + 7;
const ll BS = 2e5 + 7;
const ll AS = 26 + 7;
const ll MODULO = 1e9 + 7;

ll nt,n,m,k,q;

str s,type[DIM];

ll v1[DIM],v2[DIM];

ll a[DIM],b[DIM],last[DIM];

ll cres;

bool f;

bool check(ll p1,ll p2){

    for(int i=p1;i<p2;i++)
     if(b[i]==0)return false;

    return true;
}

void solve1(){
     for(int i=0;i<n;i++)a[i+1]=s[i]-'0';

     for(int qq=1;qq<=q;qq++){

     cin>>type[qq]>>v1[qq];


     if(type[qq]=="query"){

      cin>>v2[qq];

      cres=0;

      for(int i=1;i<=n;i++)b[i]=a[i];

      f=check(v1[qq],v2[qq]);

      if(f)cres++;

      for(int j=1;j<qq;j++){

       if(type[j]=="toggle"){

        b[v1[j]]=1-b[v1[j]];

        f=check(v1[qq],v2[qq]);
       }

       if(f)cres++;

      }

      cout<<cres<<endl;

     }

    }
}

void solve2(){

     for(int i=0;i<n;i++)a[i+1]=s[i]-'0';

     for(int qq=1;qq<=q;qq++){

     cin>>type[qq]>>v1[qq];

     if(type[qq]=="toggle"){

      a[v1[qq]]=1-a[v1[qq]];

      if(a[v1[qq]]==1)last[v1[qq]]=qq;
      else b[v1[qq]]+=qq-last[v1[qq]]+1;
     }
     else{
      cin>>v2[qq];

      cres=b[v1[qq]];
      if(a[v1[qq]]==1)cres+=qq-last[v1[qq]];
      cout<<cres<<endl;
     }

    }
}

int main()
{
    fast;
    //ll x1,y1,x2,y2;

    cin>>n>>q>>s;

    if(n<=100 && q<=100){
     solve1();
     return 0;
    }

    solve2();

    return 0;
}

/*

5 7
10110
query 1 2
query 1 2
toggle 2
query 2 3
query 3 4
query 5 6
query 2 3

*/

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9676 KB Output is correct
2 Correct 6 ms 9676 KB Output is correct
3 Correct 6 ms 9676 KB Output is correct
4 Correct 6 ms 9628 KB Output is correct
5 Correct 6 ms 9676 KB Output is correct
6 Correct 6 ms 9676 KB Output is correct
7 Correct 8 ms 9676 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 453 ms 15304 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 6 ms 9716 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 8 ms 9760 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9676 KB Output is correct
2 Correct 6 ms 9676 KB Output is correct
3 Correct 6 ms 9676 KB Output is correct
4 Correct 6 ms 9628 KB Output is correct
5 Correct 6 ms 9676 KB Output is correct
6 Correct 6 ms 9676 KB Output is correct
7 Correct 8 ms 9676 KB Output is correct
8 Incorrect 453 ms 15304 KB Output isn't correct
9 Halted 0 ms 0 KB -