QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#397307 | #1286. Ternary String Counting | maoyiting | WA | 55ms | 18756kb | C++14 | 1.2kb | 2024-04-23 21:52:24 | 2024-04-23 21:52:25 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int N=5e3+5,mod=1e9+7;
int t,n,m,Lj[N],Rj[N],Lk[N],Rk[N],sx[N],sy[N],f[N][N],ans;
deque<int>q[N];
void upd(int x,int y,int v){
q[y].push_back(x);
(sx[x]+=v)%=mod,(sy[y]+=v)%=mod,(f[x][y]+=v)%=mod;
}
void del(int x,int y){
(sx[x]-=f[x][y])%=mod,(sy[y]-=f[x][y])%=mod,f[x][y]=0;
}
void work(int i){
for(int k=0;k<i;k++){
int lj=Lj[i],rj=Rj[i];
if(!(Lk[i]<=k&&k<=Rk[i])) lj=n;
while(q[k].size()&&q[k].front()<lj)
del(q[k].front(),k),q[k].pop_front();
while(q[k].size()&&q[k].back()>rj)
del(q[k].back(),k),q[k].pop_back();
}
}
signed main(){
scanf("%d",&t);
while(t--){
scanf("%d%d",&n,&m),ans=0;
for(int i=0;i<=n;i++)
sx[i]=sy[i]=Lj[i]=Lk[i]=0,Rj[i]=Rk[i]=i-1,
fill(f[i],f[i]+1+n,0),q[i].clear();
for(int i=1,l,r,x;i<=m;i++){
scanf("%d%d%d",&l,&r,&x);
if(x==1) Rj[r]=min(Rj[r],l-1);
if(x==2) Lj[r]=max(Lj[r],l),Rk[r]=min(Rk[r],l-1);
if(x==3) Lk[r]=max(Lk[r],l);
}
upd(0,0,3),work(1);
for(int i=1;i<n;i++){
for(int j=0;j<i;j++) upd(i,j,(sx[j]+sy[j])%mod);
work(i+1);
}
for(int i=0;i<n;i++)
for(int j=0;j<n;j++) (ans+=f[i][j])%=mod;
printf("%d\n",ans);
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 2ms
memory: 9548kb
input:
4 1 0 2 0 3 0 5 2 1 3 3 4 5 1
output:
3 9 27 18
result:
ok 4 tokens
Test #2:
score: 0
Accepted
time: 0ms
memory: 9468kb
input:
741 5 3 1 5 3 3 4 2 1 4 3 4 3 2 4 2 1 4 1 2 3 3 10 3 9 10 2 3 6 3 1 9 1 3 4 2 3 2 1 3 2 2 3 3 1 3 3 10 4 6 6 1 9 10 2 4 8 3 4 10 3 6 3 1 4 3 2 4 2 2 2 2 4 3 1 4 1 1 1 2 2 3 1 5 3 4 5 2 4 5 1 1 4 3 9 3 2 3 2 1 9 2 2 4 2 4 3 1 3 3 2 3 2 1 2 3 8 4 5 8 1 4 8 1 3 5 3 1 3 3 9 3 4 5 1 1 5 3 3 8 2 8 3 5 7 2...
output:
90 0 0 0 24300 0 0 0 768 0 0 972 2916 0 6480 864 0 0 0 0 0 0 0 0 6 0 0 0 0 0 96 0 6 0 0 0 0 0 0 0 108 0 0 0 2916 0 0 0 0 0 0 0 0 0 0 324 8748 0 0 0 0 0 0 4320 0 0 0 18 0 0 0 0 0 0 0 0 0 0 0 1992 0 0 450 0 162 1656 0 0 0 0 0 54 0 18 0 0 0 0 744 0 1620 324 0 0 36 36 0 0 60 6 54 0 0 0 0 0 0 0 0 243 810...
result:
ok 741 tokens
Test #3:
score: 0
Accepted
time: 4ms
memory: 7276kb
input:
332 17 5 4 9 1 4 6 1 7 17 1 5 5 1 5 6 3 13 5 10 12 3 8 13 2 1 10 3 2 9 1 9 10 1 19 5 11 13 1 9 17 2 1 7 1 4 4 2 3 9 1 15 4 8 11 2 9 14 3 10 12 2 4 5 2 12 4 3 9 2 7 8 1 1 7 3 6 7 3 16 5 4 14 3 1 5 1 2 10 1 2 12 3 6 9 3 20 4 10 17 3 4 20 3 17 19 3 8 17 1 20 5 11 11 1 9 13 1 1 5 3 17 17 3 3 18 3 17 5 1...
output:
0 0 0 2047032 0 0 0 0 0 839808 0 0 0 0 0 0 0 0 0 0 0 0 44641044 0 20412 0 0 0 0 0 0 0 6 0 0 0 0 81 0 0 0 0 0 0 0 0 0 0 0 313155072 0 0 0 0 0 0 0 0 0 5400 0 10368 0 0 0 0 14580 0 0 0 217728 40310784 0 0 218700 0 0 0 0 1620 0 0 0 0 0 108 146304 0 0 0 466560 288 0 0 0 0 0 0 0 276138 0 0 0 0 0 0 0 52488...
result:
ok 332 tokens
Test #4:
score: 0
Accepted
time: 55ms
memory: 18228kb
input:
5 1000 0 1000 5 779 779 2 543 840 3 30 477 1 10 295 3 463 741 1 1000 6 379 569 1 249 826 2 194 819 3 90 400 1 614 808 2 102 868 2 1000 8 463 981 1 680 857 3 560 623 1 209 659 1 55 957 2 244 327 1 321 888 3 37 204 3 1000 5 336 851 3 410 676 1 522 911 2 165 962 1 258 330 3
output:
56888193 0 0 0 0
result:
ok 5 tokens
Test #5:
score: -100
Wrong Answer
time: 51ms
memory: 18756kb
input:
5 1000 9 190 765 1 212 745 3 437 798 3 682 814 3 122 289 1 44 821 1 115 448 3 400 936 2 562 639 3 1000 5 561 808 3 23 160 2 57 915 2 211 943 3 125 596 2 1000 1 398 739 2 1000 3 629 973 2 7 721 2 591 815 2 1000 10 536 708 1 217 256 2 690 913 3 418 871 2 302 325 2 334 830 2 496 573 2 396 865 1 240 837...
output:
0 0 -277728947 -914693031 0
result:
wrong answer 3rd words differ - expected: '722271060', found: '-277728947'