Task: | Merkkijonot |
Sender: | DualRed |
Submission time: | 2023-01-21 16:47:32 +0200 |
Language: | C++ (C++17) |
Status: | READY |
Result: | 100 |
group | verdict | score |
---|---|---|
#1 | ACCEPTED | 15 |
#2 | ACCEPTED | 55 |
#3 | ACCEPTED | 30 |
test | verdict | time | group | |
---|---|---|---|---|
#1 | ACCEPTED | 0.01 s | 1, 2, 3 | details |
#2 | ACCEPTED | 0.01 s | 1, 2, 3 | details |
#3 | ACCEPTED | 0.01 s | 1, 2, 3 | details |
#4 | ACCEPTED | 0.00 s | 1, 2, 3 | details |
#5 | ACCEPTED | 0.01 s | 2, 3 | details |
#6 | ACCEPTED | 0.01 s | 2, 3 | details |
#7 | ACCEPTED | 0.01 s | 2, 3 | details |
#8 | ACCEPTED | 0.06 s | 2, 3 | details |
#9 | ACCEPTED | 0.01 s | 3 | details |
#10 | ACCEPTED | 0.03 s | 3 | details |
#11 | ACCEPTED | 0.06 s | 3 | details |
#12 | ACCEPTED | 0.26 s | 3 | details |
#13 | ACCEPTED | 0.01 s | 3 | details |
#14 | ACCEPTED | 0.00 s | 3 | details |
#15 | ACCEPTED | 0.06 s | 2, 3 | details |
#16 | ACCEPTED | 0.26 s | 3 | details |
Compiler report
input/code.cpp: In function 'int main()': input/code.cpp:18:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 18 | for(int k = 0; k < s.size(); k++){ | ~~^~~~~~~~~~ input/code.cpp:38:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | for(int i = 1; i <= v.size(); i++){ | ~~^~~~~~~~~~~
Code
#include <bits/stdc++.h>using namespace std;typedef long long ll;const ll MOD = 1000000007;ll dp[501][251][251];int main() {int n; cin >> n;vector<pair<int, int>> v;int aTotal = 0; int bTotal = 0;for(int i = 0; i < n; i++){string s; cin >> s;int a = 0; int b = 0;for(int k = 0; k < s.size(); k++){if(s[k] == 'a'){a++;aTotal++;}else{b++;bTotal++;}}v.push_back(make_pair(a, b));}if(aTotal % 2 != 0 || bTotal % 2 != 0){cout << 0;return 0;}dp[0][0][0] = 1;for(int i = 1; i <= v.size(); i++){for(int a = 0; a <= 251; a++){for(int b = 0; b <= 251; b++){if(a-v[i-1].first < 0 || b-v[i-1].second < 0){dp[i][a][b] = dp[i-1][a][b];}else{dp[i][a][b] = (dp[i-1][a][b] + dp[i-1][a-v[i-1].first][b-v[i-1].second]) % MOD;}}}}ll ans = dp[v.size()][aTotal / 2][bTotal / 2];cout << ans << "\n";/*v = 1, 1, 1, 1(0, 0) = 1(1, 1) = 1(1, 0) = 1(2, 1) = 2(3, 1) = 3(4, 1) = 3+*/}/*100aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa*/
Test details
Test 1
Group: 1, 2, 3
Verdict: ACCEPTED
input |
---|
4 b bbb baabaabaa aab |
correct output |
---|
0 |
user output |
---|
0 |
Test 2
Group: 1, 2, 3
Verdict: ACCEPTED
input |
---|
8 b bb baa a ... |
correct output |
---|
12 |
user output |
---|
12 |
Test 3
Group: 1, 2, 3
Verdict: ACCEPTED
input |
---|
16 a a a b ... |
correct output |
---|
5040 |
user output |
---|
5040 |
Test 4
Group: 1, 2, 3
Verdict: ACCEPTED
input |
---|
16 b b a a ... |
correct output |
---|
0 |
user output |
---|
0 |
Test 5
Group: 2, 3
Verdict: ACCEPTED
input |
---|
5 bab bbaaabbabbbaababbbabbabaaabaaa... |
correct output |
---|
0 |
user output |
---|
0 |
Test 6
Group: 2, 3
Verdict: ACCEPTED
input |
---|
10 baabbbababbbabbaaaabab aabaaabbbab aaaabbabab aab ... |
correct output |
---|
2 |
user output |
---|
2 |
Test 7
Group: 2, 3
Verdict: ACCEPTED
input |
---|
20 aaaab baaab babb b ... |
correct output |
---|
4332 |
user output |
---|
4332 |
Test 8
Group: 2, 3
Verdict: ACCEPTED
input |
---|
100 a b a b ... |
correct output |
---|
433105324 |
user output |
---|
433105324 |
Test 9
Group: 3
Verdict: ACCEPTED
input |
---|
10 aaaabbabbaabbaaaabbbbabaaaabab... |
correct output |
---|
0 |
user output |
---|
0 |
Test 10
Group: 3
Verdict: ACCEPTED
input |
---|
50 aaba aaa abbbbaaba ababbabbabab ... |
correct output |
---|
636733956 |
user output |
---|
636733956 |
Test 11
Group: 3
Verdict: ACCEPTED
input |
---|
100 ba bbbaba bbba bb ... |
correct output |
---|
264657218 |
user output |
---|
264657218 |
Test 12
Group: 3
Verdict: ACCEPTED
input |
---|
500 a b b b ... |
correct output |
---|
394045503 |
user output |
---|
394045503 |
Test 13
Group: 3
Verdict: ACCEPTED
input |
---|
2 bbbababaaaabbbaaaaaaabbabbbaab... |
correct output |
---|
2 |
user output |
---|
2 |
Test 14
Group: 3
Verdict: ACCEPTED
input |
---|
1 bbbaaaabaabbbababbbbbbbbabbbaa... |
correct output |
---|
0 |
user output |
---|
0 |
Test 15
Group: 2, 3
Verdict: ACCEPTED
input |
---|
100 a a a a ... |
correct output |
---|
538992043 |
user output |
---|
538992043 |
Test 16
Group: 3
Verdict: ACCEPTED
input |
---|
500 a a a a ... |
correct output |
---|
515561345 |
user output |
---|
515561345 |