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Submission #843129

# Submission time Handle Problem Language Result Execution time Memory
843129 2023-09-03T17:42:51 Z grogu Mađioničar (COI22_madionicar) C++14
100 / 100
 1092 ms 596 KB 
#define here cerr<<"===========================================\n"
#define dbg(x) cerr<<#x<<": "<<x<<endl;
#include <bits/stdc++.h>
#define ld double
#define ll long long
#define ull unsigned long long
#define llinf 100000000000000000LL // 10^17
#define iinf 2000000000 // 2*10^9
#define pb push_back
#define eb emplace_back
#define popb pop_back
#define fi first
#define sc second
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pld pair<ld,ld>
#define all(a) a.begin(),a.end()
#define ceri(a,l,r) {cerr<<#a<<": ";for(ll i_ = l;i_<=r;i_++) cerr<<a[i_]<< " ";cerr<<endl;}
#define cer(a) {cerr<<#a<<": ";for(ll x_ : a) cerr<<x_<< " ";cerr<<endl;}
#define si(a) (ll)(a.size())
using namespace std;

ll n;
bool dbg = 0;
string s;
bool check(ll l,ll r){
    l--;
    r--;
    while(l<=r){
        if(s[l]!=s[r]) return 0;
        l++;
        r--;
    }
    return 1;
}
bool ask(ll l,ll r){
    if(l<1) return 0;
    cout<<"? "<<l<< " "<<r<<endl;
    bool ans;
    if(dbg) return check(l,r);
    cin >> ans;
    return ans;
}
int main(){
    cin >> n;
    if(dbg) cin >> s;
    ll ans = 1;
    for(ll i = 2;i<=n;i++){
        if(ask(i-ans-1,i)) ans+=2;
        else if(ask(i-ans,i)) ans++;
    }
    cout<<"! "<<ans<<endl;
	return (0-0);
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 62 ms 344 KB Output is correct
2 Correct 81 ms 596 KB Output is correct
3 Correct 62 ms 344 KB Output is correct
4 Correct 82 ms 504 KB Output is correct
5 Correct 59 ms 344 KB Output is correct
6 Correct 79 ms 344 KB Output is correct
7 Correct 69 ms 344 KB Output is correct
8 Correct 44 ms 344 KB Output is correct
9 Correct 82 ms 344 KB Output is correct
10 Correct 63 ms 344 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 62 ms 344 KB Output is correct
2 Correct 81 ms 596 KB Output is correct
3 Correct 62 ms 344 KB Output is correct
4 Correct 82 ms 504 KB Output is correct
5 Correct 59 ms 344 KB Output is correct
6 Correct 79 ms 344 KB Output is correct
7 Correct 69 ms 344 KB Output is correct
8 Correct 44 ms 344 KB Output is correct
9 Correct 82 ms 344 KB Output is correct
10 Correct 63 ms 344 KB Output is correct
11 Correct 661 ms 344 KB Output is correct
12 Correct 683 ms 344 KB Output is correct
13 Correct 712 ms 344 KB Output is correct
14 Correct 636 ms 344 KB Output is correct
15 Correct 653 ms 344 KB Output is correct
16 Correct 667 ms 344 KB Output is correct
17 Correct 719 ms 344 KB Output is correct
18 Correct 624 ms 344 KB Output is correct
19 Correct 624 ms 344 KB Output is correct
20 Correct 635 ms 344 KB Output is correct
21 Correct 674 ms 344 KB Output is correct
22 Correct 689 ms 344 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1002 ms 344 KB Output is correct
2 Correct 512 ms 344 KB Output is correct
3 Correct 1057 ms 344 KB Output is correct
4 Correct 1008 ms 344 KB Output is correct
5 Correct 1041 ms 344 KB Output is correct
6 Correct 1080 ms 344 KB Output is correct
7 Correct 954 ms 344 KB Output is correct
8 Correct 963 ms 344 KB Output is correct
9 Correct 977 ms 344 KB Output is correct
10 Correct 989 ms 344 KB Output is correct
11 Correct 941 ms 344 KB Output is correct
12 Correct 953 ms 344 KB Output is correct
13 Correct 955 ms 344 KB Output is correct
14 Correct 1074 ms 344 KB Output is correct

Subtask #4
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 62 ms 344 KB Output is correct
2 Correct 81 ms 596 KB Output is correct
3 Correct 62 ms 344 KB Output is correct
4 Correct 82 ms 504 KB Output is correct
5 Correct 59 ms 344 KB Output is correct
6 Correct 79 ms 344 KB Output is correct
7 Correct 69 ms 344 KB Output is correct
8 Correct 44 ms 344 KB Output is correct
9 Correct 82 ms 344 KB Output is correct
10 Correct 63 ms 344 KB Output is correct
11 Correct 661 ms 344 KB Output is correct
12 Correct 683 ms 344 KB Output is correct
13 Correct 712 ms 344 KB Output is correct
14 Correct 636 ms 344 KB Output is correct
15 Correct 653 ms 344 KB Output is correct
16 Correct 667 ms 344 KB Output is correct
17 Correct 719 ms 344 KB Output is correct
18 Correct 624 ms 344 KB Output is correct
19 Correct 624 ms 344 KB Output is correct
20 Correct 635 ms 344 KB Output is correct
21 Correct 674 ms 344 KB Output is correct
22 Correct 689 ms 344 KB Output is correct
23 Correct 1002 ms 344 KB Output is correct
24 Correct 512 ms 344 KB Output is correct
25 Correct 1057 ms 344 KB Output is correct
26 Correct 1008 ms 344 KB Output is correct
27 Correct 1041 ms 344 KB Output is correct
28 Correct 1080 ms 344 KB Output is correct
29 Correct 954 ms 344 KB Output is correct
30 Correct 963 ms 344 KB Output is correct
31 Correct 977 ms 344 KB Output is correct
32 Correct 989 ms 344 KB Output is correct
33 Correct 941 ms 344 KB Output is correct
34 Correct 953 ms 344 KB Output is correct
35 Correct 955 ms 344 KB Output is correct
36 Correct 1074 ms 344 KB Output is correct
37 Correct 1050 ms 344 KB Output is correct
38 Correct 957 ms 344 KB Output is correct
39 Correct 1036 ms 344 KB Output is correct
40 Correct 1061 ms 344 KB Output is correct
41 Correct 1090 ms 344 KB Output is correct
42 Correct 968 ms 344 KB Output is correct
43 Correct 1092 ms 344 KB Output is correct
44 Correct 971 ms 344 KB Output is correct
45 Correct 955 ms 344 KB Output is correct
46 Correct 1012 ms 344 KB Output is correct
47 Correct 1037 ms 344 KB Output is correct
48 Correct 998 ms 344 KB Output is correct
49 Correct 1000 ms 344 KB Output is correct
50 Correct 796 ms 344 KB Output is correct
51 Correct 1036 ms 596 KB Output is correct
52 Correct 1008 ms 344 KB Output is correct