Task: | Torni |
Sender: | Gomhog |
Submission time: | 2020-09-25 19:09:56 +0300 |
Language: | C++ (C++11) |
Status: | READY |
Result: | 100 |
group | verdict | score |
---|---|---|
#1 | ACCEPTED | 15 |
#2 | ACCEPTED | 41 |
#3 | ACCEPTED | 44 |
test | verdict | time | group | |
---|---|---|---|---|
#1 | ACCEPTED | 0.02 s | 1, 2, 3 | details |
#2 | ACCEPTED | 0.02 s | 2, 3 | details |
#3 | ACCEPTED | 0.02 s | 3 | details |
Code
#include <bits/stdc++.h>typedef long long ll;typedef long double ld;#define F first#define S secondusing namespace std;ll dp[1010101][2];const ll M=1e9+7;void dfs() {dp[1][0]=1;dp[1][1]=1;for (int j=2;j<1010101;j++) {dp[j][0]=(4*dp[j-1][0]+dp[j-1][1])%M;dp[j][1]=(dp[j-1][0]+2*dp[j-1][1])%M;}}int main() {ios_base::sync_with_stdio(0);cin.tie(0);dfs();int tst;cin>>tst;for (int t=0;t<tst;t++) {int n;cin>>n;cout<<(dp[n][0]+dp[n][1])%M<<"\n";}}
Test details
Test 1
Group: 1, 2, 3
Verdict: ACCEPTED
input |
---|
10 1 2 3 4 ... |
correct output |
---|
2 8 34 148 650 ... |
user output |
---|
2 8 34 148 650 ... |
Test 2
Group: 2, 3
Verdict: ACCEPTED
input |
---|
100 1 2 3 4 ... |
correct output |
---|
2 8 34 148 650 ... |
user output |
---|
2 8 34 148 650 ... Truncated |
Test 3
Group: 3
Verdict: ACCEPTED
input |
---|
100 996306 650655 896240 821967 ... |
correct output |
---|
87350005 606189151 122595036 193572715 227926807 ... |
user output |
---|
87350005 606189151 122595036 193572715 227926807 ... Truncated |