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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#697981 | #1286. Ternary String Counting | zhanghm | ML | 518ms | 251820kb | C++14 | 2.9kb | 2024-11-01 16:42:53 | 2024-11-01 16:42:53 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair <ll,ll> pii;
typedef pair <pii,ll> piii;
const ll mod=1e9+7;
const int N=5e3+10;
ll sum1[N],sum2[N],dp[N][4];
deque <pii> q1[N],q2[N];
ll t,n,m,ans;
vector <piii> tmp;
void du()
{
for(piii f:tmp)
{
ll x=f.first.first,y=f.first.second,w=f.second;
q1[x].emplace_back(y,w);
sum1[x]+=w;
q2[y].emplace_back(x,w);
sum2[y]+=w;
}
tmp.clear();
}
int main()
{
// freopen("color.in","r",stdin);
// freopen("color.out","w",stdout);
cin>>t;
while(t--)
{
ans=0;
scanf("%lld %lld",&n,&m);
for(int i=0;i<=n;++i)
{
dp[i][0]=dp[i][1]=n+1;
dp[i][2]=dp[i][3]=0;
}
for(int i=1;i<=m;++i)
{
ll l,r,x;
scanf("%lld %lld %lld",&l,&r,&x);
if(x==1)
{
dp[r][0]=min(dp[r][0],l);
}
else if(x==2)
{
dp[r][1]=min(dp[r][1],l);
dp[r][2]=max(dp[r][2],l);
}
else
{
dp[r][3]=max(dp[r][3],l);
}
}
if(dp[1][1]!=n+1||dp[1][2]||dp[1][3])
{
puts("0");
continue;
}
for(int i=0;i<=n;++i)
{
sum1[i]=sum2[i]=0;
q1[i].clear();
q2[i].clear();
}
tmp.clear();
tmp.push_back({{0,0},3});
du();
for(int i=2;i<=n;++i)
{
for(int j=0;j<i;++j)
{
if(sum1[j]||sum2[j])
{
tmp.push_back({{i-1,j},(sum1[j]+sum2[j])%mod});
}
}
du();
for(int j=0;j<i;++j)
{
if(j<dp[i][0])
{
while(!q1[j].empty()&&(*q1[j].rbegin()).first>=dp[i][0])
{
sum1[j]-=(*q1[j].rbegin()).second;
auto it=q1[j].end()-1;
q1[j].erase(it);
}
while(!q2[j].empty()&&(*q2[j].rbegin()).first>=dp[i][0])
{
sum2[j]-=(*q2[j].rbegin()).second;
auto it=q2[j].end()-1;
q2[j].erase(it);
}
}
else
{
sum1[j]=sum2[j]=0;
q1[j].clear();
q2[j].clear();
}
}
for(int j=0;j<i;++j)
{
if(j<dp[i][2])
{
q1[j].clear();
sum1[j]=0;
}
else
{
while(!q1[j].empty()&&(*q1[j].rbegin()).first>=dp[i][1])
{
sum1[j]-=(*q1[j].rbegin()).second;
auto it=q1[j].end()-1;
q1[j].erase(it);
}
}
if(j>=dp[i][1])
{
q2[j].clear();
sum2[j]=0;
}
else
{
while(!q2[j].empty()&&(*q2[j].begin()).first<dp[i][2])
{
sum2[j]-=(*q2[j].begin()).second;
q2[j].erase(q2[j].begin());
}
}
}
for(int j=0;j<i;++j)
{
if(j>=dp[i][3])
{
while(!q1[j].empty()&&(*q1[j].begin()).first<dp[i][3])
{
sum1[j]-=(*q1[j].begin()).second;
q1[j].erase(q1[j].begin());
}
while(!q2[j].empty()&&(*q2[j].begin()).first<dp[i][3])
{
sum2[j]-=(*q2[j].begin()).second;
q2[j].erase(q2[j].begin());
}
}
else
{
sum1[j]=sum2[j]=0;
q1[j].clear();
q2[j].clear();
}
}
}
for(int i=0;i<=n;++i)
{
ans=(ans+sum1[i])%mod;
}
printf("%lld\n",ans);
}
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 10564kb
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: 3ms
memory: 10832kb
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: 2ms
memory: 10828kb
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: 45ms
memory: 26796kb
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: 0
Accepted
time: 61ms
memory: 22756kb
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 722271060 85306976 0
result:
ok 5 tokens
Test #6:
score: 0
Accepted
time: 142ms
memory: 57776kb
input:
2 2000 1 1501 1703 2 2000 5 1230 1521 3 1022 1939 3 1241 1283 3 767 1944 2 303 1163 3
output:
841960641 0
result:
ok 2 tokens
Test #7:
score: 0
Accepted
time: 119ms
memory: 70560kb
input:
2 2000 2 640 1942 1 1473 1917 3 2000 4 490 887 1 670 1163 3 824 1434 2 1221 1746 1
output:
0 0
result:
ok 2 tokens
Test #8:
score: 0
Accepted
time: 124ms
memory: 48880kb
input:
1 5000 9 2821 3377 2 798 1535 2 3563 4161 3 2205 2946 3 1320 1594 3 278 1624 1 1243 2759 3 2882 4939 1 2639 3559 3
output:
0
result:
ok "0"
Test #9:
score: 0
Accepted
time: 518ms
memory: 251820kb
input:
1 5000 2 539 4252 1 906 3821 1
output:
101862333
result:
ok "101862333"
Test #10:
score: 0
Accepted
time: 3ms
memory: 10764kb
input:
111 34 0 30 0 18 0 35 0 3 0 43 0 13 0 28 0 57 0 75 0 31 0 4 0 92 0 1 0 53 0 85 0 74 0 43 0 59 0 72 0 79 0 40 0 70 0 36 0 86 0 56 0 53 0 66 0 50 0 100 0 60 0 74 0 50 0 51 0 92 0 49 0 50 0 78 0 95 0 4 0 59 0 44 0 92 0 84 0 7 0 75 0 99 0 56 0 54 0 13 0 27 0 33 0 22 0 80 0 14 0 79 0 29 0 39 0 21 0 97 0 ...
output:
582926302 130653412 387420489 748778899 27 738321955 1594323 792294829 998064805 100094381 391960236 81 587240675 3 172815616 473062299 700031465 738321955 982583189 966670169 107644805 953271190 662963356 246336683 419186890 666021604 172815616 909419307 710104287 886041711 947749553 700031465 7101...
result:
ok 111 tokens
Test #11:
score: 0
Accepted
time: 25ms
memory: 14784kb
input:
16 350 0 453 0 485 0 361 0 498 0 149 0 433 0 435 0 279 0 240 0 166 0 152 0 393 0 159 0 219 0 222 0
output:
378029361 68761795 621961191 766744305 24977444 679213660 705815658 352340880 186665231 458529104 150230246 338768694 907169137 887128598 322586612 709838468
result:
ok 16 tokens
Test #12:
score: -100
Memory Limit Exceeded
input:
1 5000 0
output:
22443616