QOJ.ac
QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#760960 | #9536. Athlete Welcome Ceremony | ryh7 | WA | 3ms | 169688kb | C++17 | 3.4kb | 2024-11-18 20:22:52 | 2024-11-18 20:22:53 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
using ull = unsigned long long;
using VI = vector<int>;
using PII = pair<int,int>;
using VVI = vector<vector<int>>;
const ll mod = 1e9 + 7;
const ll INF = 1e18;
const int N = 2e5 + 10;
void solve(){
}
int n;
int q;
string s;
ll dp[400][400][400][3];
ll sum[400][400];
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
//int T;cin>>T;while(T--)solve();
//?????????????
cin>>n>>q;
cin>>s;
s = " " + s;
if(s[1] == '?'){
dp[1][1][0][0] = 1;
dp[1][0][1][1] = 1;
dp[1][0][0][2] = 1;
}else{
if(s[1] == 'a') dp[1][1][0][0] = 1;
if(s[1] == 'b') dp[1][0][1][1] = 1;
if(s[1] == 'c') dp[1][0][0][2] = 1;
}
//cout<<dp[1][1][0][0];
//dp[0][0][0][3] = 0;
for(int i = 2 ; i <= n ; i++){
if(s[i] == '?'){
for(int a = 0 ; a <= i ; a++){
for(int b = 0 ; b <= i ; b++){
if(a >= 1) {
dp[i][a][b][0] += dp[i - 1][a - 1][b][1] + dp[i - 1][a - 1][b][2];
dp[i][a][b][0] %= mod;
}
if(b >= 1){
dp[i][a][b][1] += dp[i - 1][a][b - 1][0] + dp[i - 1][a][b - 1][2];
dp[i][a][b][1] %= mod;
}
if(i - (a + b) >= 1){
dp[i][a][b][2] += dp[i - 1][a][b][0] + dp[i - 1][a][b][1];
dp[i][a][b][2] %= mod;
}
}
}
}else{
for(int a = 0 ; a <= i ; a++){
for(int b = 0 ; b <= i ; b++){
if(s[i] == 'a'){
if(a >= 1) {
dp[i][a][b][0] += dp[i - 1][a - 1][b][1] + dp[i - 1][a - 1][b][2];
dp[i][a][b][0] %= mod;
}
dp[i][a][b][1] = 0;
dp[i][a][b][2] = 0;
}
if(s[i] == 'b'){
if(b >= 1){
dp[i][a][b][1] += dp[i - 1][a][b - 1][0] + dp[i - 1][a][b - 1][2];
dp[i][a][b][1] %= mod;
}
dp[i][a][b][0] = 0;
dp[i][a][b][2] = 0;
}
if(s[i] == 'c'){
if(i - (a + b) >= 1){
dp[i][a][b][2] += dp[i - 1][a][b][0] + dp[i - 1][a][b][1];
dp[i][a][b][2] %= mod;
}
dp[i][a][b][0] = 0;
dp[i][a][b][1] = 0;
}
}
}
}
}
//acbabc
/*cout<<dp[1][1][0][0]<<" ";
cout<<dp[1][1][0][1]<<" ";
cout<<dp[2][1][0][2]<<" ";
cout<<endl;*/
for(int a = 0 ; a <= n ; a++){
for(int b = 0 ; b <= n ; b++){
sum[a][b] += dp[n][a][b][0] + dp[n][a][b][1] + dp[n][a][b][2];
sum[a][b] %= mod;
}
for(int b = 1 ; b <= n ; b++){
sum[a][b] += sum[a][b - 1];
sum[a][b] %= mod;
}
}
VI t(26 , 0);
for(int i = 1 ; i <= n ; i++){
if(s[i] == '?') continue;
t[s[i] - 'a']++;
}
while(q--){
int x,y,z;
cin>>x>>y>>z;
ll res = 0;
int rest = n - t[1] - t[2] - y - z;
for(int i = max(t[0] , rest) ; i <= min(t[0] + x , n) ; i++){
int L = max(t[1] , n - i - t[2] - z);
int R = min(n - i - t[2] , t[1] + y);
if(L > R) continue;
//cout<<i<<" "<<L<<" "<<R<<" ";
res += sum[i][R] - (L == 0 ? 0 : sum[i][L - 1]);
res %= mod;
//cout<<res<<" ";
//cout<<endl;
}
cout<<res<<'\n';
}
}
//5 4 3 2 1
//5 4 3 2 1
详细
Test #1:
score: 100
Accepted
time: 1ms
memory: 7644kb
input:
6 3 a?b??c 2 2 2 1 1 1 1 0 2
output:
3 1 1
result:
ok 3 lines
Test #2:
score: 0
Accepted
time: 1ms
memory: 5676kb
input:
6 3 ?????? 2 2 2 2 3 3 3 3 3
output:
30 72 96
result:
ok 3 lines
Test #3:
score: 0
Accepted
time: 1ms
memory: 5804kb
input:
1 1 ? 0 1 1
output:
2
result:
ok single line: '2'
Test #4:
score: 0
Accepted
time: 3ms
memory: 16224kb
input:
10 10 acab?cbaca 0 2 0 1 1 2 4 2 3 1 1 1 3 5 1 0 5 2 2 2 0 1 2 5 4 3 0 1 1 3
output:
0 1 1 1 1 0 1 1 1 1
result:
ok 10 lines
Test #5:
score: 0
Accepted
time: 0ms
memory: 9808kb
input:
10 10 ?c?c?cbac? 10 5 1 5 8 7 9 2 6 5 7 1 5 2 6 5 6 5 5 10 3 9 1 10 2 5 9 1 2 9
output:
16 16 11 16 11 16 16 5 11 0
result:
ok 10 lines
Test #6:
score: 0
Accepted
time: 0ms
memory: 73924kb
input:
50 100 ?abacbacab?cbcbcb?acabcbabcbcacbababc?caba?acacbca 8 3 8 2 4 8 8 7 3 0 9 2 10 8 7 7 6 5 4 10 2 6 9 3 3 6 6 9 10 8 2 5 8 8 1 0 3 5 0 1 0 6 5 0 8 6 5 5 1 7 9 7 7 10 4 7 5 6 6 4 10 1 2 4 1 7 10 0 8 7 6 3 1 9 1 4 7 2 8 4 0 8 6 1 5 10 4 5 8 2 5 8 4 4 5 9 5 2 1 1 10 9 4 10 1 8 4 3 8 9 9 8 0 1 0 8 0...
output:
8 8 8 0 8 8 6 8 8 8 8 0 0 0 1 8 4 8 8 8 2 4 1 8 1 6 0 2 8 6 8 8 1 4 2 8 8 0 0 8 2 0 8 8 8 4 8 8 8 8 2 0 0 4 8 8 1 8 7 6 7 0 8 8 8 0 4 7 8 4 0 8 0 4 8 8 8 7 8 4 7 2 8 8 8 0 2 2 8 8 8 4 4 0 8 0 8 8 1 1
result:
ok 100 lines
Test #7:
score: 0
Accepted
time: 0ms
memory: 40824kb
input:
50 100 b????????bca?????c?b??ca?acac?b?b???ca?ab???a?a??? 35 43 36 12 49 47 7 11 34 38 44 22 42 17 10 49 8 38 18 26 44 6 18 14 28 29 6 48 32 47 29 15 48 1 5 33 24 17 18 10 27 32 19 10 34 2 23 9 14 24 39 46 12 34 9 49 26 21 8 46 43 43 3 31 16 2 8 27 7 24 41 35 17 25 31 0 13 47 24 31 23 33 40 30 36 39...
output:
34272000 31599360 497244 34272000 17637520 12290752 34272000 93044 415832 34272000 34272000 0 34272000 16360704 27933952 0 34272000 33886976 7896832 12290752 718 24 0 34272000 34272000 0 34272000 34272000 34272000 32254720 0 5666944 34256640 34272000 34272000 12290752 30493248 34256640 20630016 0 10...
result:
ok 100 lines
Test #8:
score: 0
Accepted
time: 3ms
memory: 169688kb
input:
100 1000 c?cbababcabacbacbacacbacabcbabababacababcbcab?cbabacbacbcbcacbab?bcabcbcababcacbabacbcb?babcbab?baca 13 11 4 4 17 20 14 5 2 16 14 15 8 12 17 19 5 11 5 17 12 20 7 6 19 10 1 6 5 0 13 1 9 7 17 1 20 4 16 11 12 18 19 2 16 18 1 11 19 16 3 7 1 0 6 9 16 6 9 16 6 20 7 0 16 20 1 2 8 16 5 20 18 14 18 ...
output:
16 15 14 16 16 16 16 16 8 2 16 8 16 16 16 16 16 2 16 16 16 0 1 16 16 5 1 5 16 16 16 16 16 15 16 13 16 15 2 16 16 1 8 16 16 16 15 0 16 15 16 16 16 16 8 8 16 16 16 16 16 16 8 16 16 1 8 8 16 16 1 16 1 0 16 2 2 16 7 16 16 8 16 16 16 16 1 16 14 16 16 16 16 5 16 16 14 16 11 16 15 11 2 1 8 16 16 7 16 5 16 ...
result:
ok 1000 lines
Test #9:
score: -100
Wrong Answer
time: 0ms
memory: 39780kb
input:
100 1000 ?????c??????????????????????????b???a????a?????????????????????????c???????????????????????????????? 43 38 20 27 40 32 39 27 33 28 50 43 50 3 46 38 46 14 42 48 10 45 25 28 49 10 49 38 17 42 41 49 22 41 18 44 46 47 25 17 44 35 34 43 22 47 42 32 32 44 40 36 41 24 45 38 45 49 44 18 42 34 32 43...
output:
490475656 143989836 -880338078 -292135540 10104 -780899456 479284703 -235781478 903846231 659694548 -795712944 105920502 -808220503 -817197302 215438611 -61307689 -202418803 -96082587 893995828 287222624 -421304178 95654849 457810426 -290650212 -914038163 -76669513 783007506 111119718 295402274 2415...
result:
wrong answer 3rd lines differ - expected: '119661929', found: '-880338078'