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Submission #950321

# Submission time Handle Problem Language Result Execution time Memory
950321 2024-03-20T08:10:55 Z berr Fibonacci representations (CEOI18_fib) C++17
15 / 100
 4000 ms 4024 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
const int mod =1e9+7;

int mul(int x, int y){
    return (x*y)%mod;
}

int sum(int x, int y){
    return (x+y) % mod;
}
int poww(int x, int y){
    if(y==0) return 1;

    int tmp =poww(x, y/2);
    tmp=mul(tmp, tmp);

    if(y%2) return mul(tmp, x);
    return tmp;
}

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);



    int n; cin >> n;
    vector<int> a(n);
    int cnt=1;
    for(auto &i: a) cin >> i;
    set<int> st;

    for(int i=0; i<n; i++){
        int ans=1;
        st.insert(a[i]);
        vector<array<int, 2>> dp(st.size());

        dp[0]={1, (*st.begin()-1)/2};
        if(*st.begin()<2){
            dp[0][1]=0;
        }
        int cnt=1;
        int last=*st.begin();
        for(auto h: st){
            if(h==*st.begin()) continue;

            dp[cnt][0]=sum(dp[cnt-1][0], dp[cnt-1][1]);
            dp[cnt][1]=sum(mul(dp[cnt-1][0], (h-last-1)/2), mul(dp[cnt-1][1], (h-last)/2));
            cnt++; last=h;
        }

        cout<<sum(dp[i][0], dp[i][1])<<"\n";
    }


}

Compilation message

fib.cpp: In function 'int main()':
fib.cpp:37:13: warning: unused variable 'ans' [-Wunused-variable]
   37 |         int ans=1;
      |             ^~~
fib.cpp:32:9: warning: unused variable 'cnt' [-Wunused-variable]
   32 |     int cnt=1;
      |         ^~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Execution timed out 4019 ms 4024 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -