oj.uz

Submission #404954

# Submission time Handle Problem Language Result Execution time Memory
404954 2021-05-15T11:49:23 Z A_D Street Lamps (APIO19_street_lamps) C++14
20 / 100
 745 ms 11312 KB 
#include <bits/stdc++.h>
#define int long long
#define ii pair<int,int>
#define F first
#define S second
#define du long double
using namespace std;
const int N=3e5+100;
int a[N];
int ans[N];
void solve()
{
    int n,q;
    cin>>n>>q;
    string s;
    cin>>s;
    int cnt=0;
    for(auto x:s){
        cnt++;
        if(x=='1'){
            a[cnt]=0;
        }
        else{
            a[cnt]=-1;
        }
    }
    for(int i=1;i<=q;i++){
//        for(int j=1;j<=n;j++)cout<<a[j]<<" ";cout<<endl;
  //      for(int j=1;j<=n;j++)cout<<ans[j]<<" ";cout<<endl;
        string s;
        cin>>s;
        if(s=="query"||s=="1"){
            int b;
            scanf("%lld",&b);
            scanf("%lld",&b);
            b--;
            int u=ans[b];
            if(a[b]!=-1){
                u+=i-a[b];
            }
            printf("%lld\n",u);
        }
        else{
            int b;
            scanf("%lld",&b);
            if(a[b]==-1){
                a[b]=i;
            }
            else{
                ans[b]+=i-a[b];
                a[b]=-1;
            }
        }
    }
}

main()
{
    int t=1;
    //cin>>t;
    while(t--)solve();
}

Compilation message

street_lamps.cpp:57:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   57 | main()
      | ^~~~
street_lamps.cpp: In function 'void solve()':
street_lamps.cpp:34:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   34 |             scanf("%lld",&b);
      |             ~~~~~^~~~~~~~~~~
street_lamps.cpp:35:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   35 |             scanf("%lld",&b);
      |             ~~~~~^~~~~~~~~~~
street_lamps.cpp:45:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   45 |             scanf("%lld",&b);
      |             ~~~~~^~~~~~~~~~~

Subtask #1
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 400 ms 1108 KB Output is correct
2 Correct 419 ms 4828 KB Output is correct
3 Correct 409 ms 5216 KB Output is correct
4 Correct 443 ms 11312 KB Output is correct
5 Correct 492 ms 9280 KB Output is correct
6 Correct 384 ms 11100 KB Output is correct
7 Correct 726 ms 9680 KB Output is correct
8 Correct 745 ms 10924 KB Output is correct

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -