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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 |
---|---|---|---|---|---|---|---|---|---|
#723378 | #9536. Athlete Welcome Ceremony | xiaoxiao__ | WA | 23ms | 229888kb | C++20 | 3.0kb | 2024-11-07 22:00:09 | 2024-11-07 22:00:10 |
Judging History
answer
#include<iostream>
#include<algorithm>
#include<set>
#include<map>
#include<vector>
#include<cmath>
#include<bitset>
#include<cstring>
#include<queue>
#define fi first
#define se second
using namespace std;
using ll=long long;
const ll mod=1e9+7;
typedef pair<int,int>pii;
const int N=310;
ll dp[N][N][N][3];
ll pre[N][N];
//{pos,cnt_a,cnt_b}
//{0,1,2}={a,b,c}
char a[N];
ll mo(ll x){
return (x%mod+mod)%mod;
}
void Silverwolf(){
int n,q;
cin>>n>>q;
vector<int>cnt(4,0);
for(int i=1;i<=n;i++){
cin>>a[i];
if(a[i]=='a')cnt[0]++;
else if(a[i]=='b')cnt[1]++;
else if(a[i]=='c')cnt[2]++;
else cnt[3]++;
}
if(a[1]=='a')dp[1][0][0][0]=1;
else if(a[1]=='b')dp[1][0][0][1]=1;
else if(a[1]=='c')dp[1][0][0][2]=1;
else{
dp[1][1][0][0]=1;
dp[1][0][1][1]=1;
dp[1][0][0][2]=1;
}
for(int i=2;i<=n;i++){
for(int j=0;j<=300;j++){
for(int k=0;k<=300;k++){
if(a[i]=='a'){
dp[i][j][k][0]=(dp[i-1][j][k][1]+dp[i-1][j][k][2])%mod;
}else if(a[i]=='b'){
dp[i][j][k][1]=(dp[i-1][j][k][0]+dp[i-1][j][k][2])%mod;
}else if(a[i]=='c'){
dp[i][j][k][2]=(dp[i-1][j][k][0]+dp[i-1][j][k][1])%mod;
}else{
if(j)dp[i][j][k][0]=(dp[i-1][j-1][k][1]+dp[i-1][j-1][k][2])%mod;
if(k)dp[i][j][k][1]=(dp[i-1][j][k-1][0]+dp[i-1][j][k-1][2])%mod;
dp[i][j][k][2]=(dp[i-1][j][k][0]+dp[i-1][j][k][1])%mod;
}
}
}
}
for(int i=0;i<=300;i++){
for(int j=0;j<=300;j++){
if(j)pre[i][j]=(pre[i][j-1]+dp[n][i][j][0]+dp[n][i][j][1]+dp[n][i][j][2])%mod;
else pre[i][j]=(dp[n][i][j][0]+dp[n][i][j][1]+dp[n][i][j][2])%mod;
}
}
// for(int i=1;i<=n;i++){
// for(int j=0;j<=3;j++){
// for(int k=0;k<=3;k++){
// cout<<(dp[i][j][k][0]+dp[i][j][k][1]+dp[i][j][k][2])<<' ';
// }cout<<'\n';
// }cout<<'\n';
// }
while(q--){
int x,y,z;
cin>>x>>y>>z;
//x1<=x,y1<=y
ll ans=0;
for(int x1=0;x1<=x;x1++){
int l=cnt[3]-x1-z;
int r=y;
//cout<<x1<<' '<<l<<' '<<r<<'\n';
if(l>r)continue;
else{
l--;
if(l<0)ans=(ans+pre[x1][r])%mod;
else ans=(ans+pre[x1][r]-pre[x1][l])%mod;
}
}
cout<<ans<<'\n';
}
}
int main(){
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
//int T;cin>>T;while(T--)
Silverwolf();
//愿艾利欧三度为你窥见,令你的生命永不停歇,骇入永远成功,游戏永远胜利。
//游戏就只是为了游戏,仅此而已
//acm这种东西,三两下搞定就好啦
return 0;
}
詳細信息
Test #1:
score: 100
Accepted
time: 2ms
memory: 18548kb
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: 0ms
memory: 20732kb
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: 0ms
memory: 7952kb
input:
1 1 ? 0 1 1
output:
2
result:
ok single line: '2'
Test #4:
score: 0
Accepted
time: 0ms
memory: 28920kb
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: 2ms
memory: 28852kb
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: 11ms
memory: 117240kb
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: 17ms
memory: 120408kb
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: 19ms
memory: 229524kb
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: 23ms
memory: 229888kb
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'