QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#251549 | #7775. 【模板】矩阵快速幂 | zhouhuanyi | 0 | 2859ms | 30188kb | C++14 | 7.2kb | 2023-11-14 20:33:20 | 2023-11-14 20:33:21 |
Judging History
answer
#include<iostream>
#include<cstdio>
#include<vector>
#define N 300
#define mod 998244353
#define __builtin_ia32_adc(x,y,flag) __asm__("addb %3, %0\n\t" "adcq %2, %1\n\t" "setc %0":"+r"(flag),"+r"(x):"r"(y),"i"(-1):"cc")
using namespace std;
long long read()
{
char c=0;
long long sum=0;
while (c<'0'||c>'9') c=getchar();
while ('0'<=c&&c<='9') sum=sum*10+c-'0',c=getchar();
return sum;
}
struct bigint{
typedef unsigned long long u64;
typedef unsigned __int128 u128;
typedef std::size_t st;
std::vector<u64> data;
bigint(){}
bigint(u64 x):data(x?std::vector<u64>{x}:std::vector<u64>{}){}
bigint(const std::string &s){
st pos=s.length();
int cnt=0;
u64 val=0;
while(pos){
pos--;
if(cnt==64){
data.push_back(val);
val=0;cnt=0;
}
val|=(u64)(s[pos]=='1')<<cnt;
++cnt;
}
if(cnt&&val)data.push_back(val);
}
explicit operator std::string()const{
if(data.empty())return "0";
bool t=0;
std::string ret;
for(int i=63;i>=0;i--){
t|=(data.back()>>i)&1;
if(t)ret+='0'|((data.back()>>i)&1);
}
st i=data.size()-1;
while(i){
i--;
for(int j=63;j>=0;j--)ret+='0'|((data[i]>>j)&1);
}
return ret;
}
explicit operator bool()const{return !data.empty();}
explicit operator u64()const{return data.empty()?0:data[0];}
st digit()const{
if(data.empty())return 0;
return (data.size()<<6)-__builtin_clzll(data.back());
}
bool operator==(const bigint &a)const{return a.data==data;}
bool operator!=(const bigint &a)const{return a.data!=data;}
bool operator<(const bigint &a)const{
if(data.size()!=a.data.size())return data.size()<a.data.size();
for(st i=data.size();i;){
i--;
if(data[i]!=a.data[i])return data[i]<a.data[i];
}
return 0;
}
bool operator>(const bigint &a)const{return a<(*this);}
bool operator<=(const bigint &a)const{return !(*this>a);}
bool operator>=(const bigint &a)const{return !(*this<a);}
bigint &operator<<=(st n){
if(data.empty())return *this;
int w=n&63;st z=n>>6;
st i=data.size();
bool flg=0;
if(w&&(data.back()>>(64-w)))data.push_back(0),flg=1;
data.resize(data.size()+z);
while(i){
i--;
if(flg)data[i+z+1]|=data[i]>>(64-w);
data[i+z]=data[i]<<w;
flg|=bool(w);
}
for(st i=0;i<z;i++)data[i]=0;
return *this;
}
bigint &operator>>=(st n){
int w=n&63;st z=n>>6,i=0;
for(;i+z<data.size();i++){
if(w&&i)data[i-1]|=data[i+z]<<(64-w);
data[i]=data[i+z]>>w;
}
while(data.size()>i)data.pop_back();
while(!data.empty()&&data.back()==0)data.pop_back();
return *this;
}
bigint operator<<(st n)const{return bigint(*this)<<=n;}
bigint operator>>(st n)const{return bigint(*this)>>=n;}
bigint &operator+=(const bigint &a){
data.resize(std::max(data.size(),a.data.size()));
bool carry=0;
for(st i=0;i<data.size();i++){
u64 rg=0;
if(i<a.data.size())rg=a.data[i];
__builtin_ia32_adc(data[i],rg,carry);
}
if(carry)data.push_back(1);
return *this;
}
bigint &operator-=(const bigint &a){
bool carry=1;
for(st i=0;i<data.size();i++){
u64 rg=-1;
if(i<a.data.size())rg=~a.data[i];
__builtin_ia32_adc(data[i],rg,carry);
}
while(!data.empty()&&data.back()==0)data.pop_back();
return *this;
}
bigint &operator++(){return *this+=bigint(1);}
bigint &operator--(){return *this-=bigint(1);}
bigint operator++(int){bigint tmp=*this;++*this;return tmp;}
bigint operator--(int){bigint tmp=*this;--*this;return tmp;}
bigint &operator*=(const bigint &a){
std::vector<u64> ret(data.size()+a.data.size());
for(st i=0;i<data.size();i++){
u64 carry=0;bool wcarry=0;
st k=i;
for(st j=0;j<a.data.size();j++,k++){
u128 r=data[i]*(u128)a.data[j]+carry;
u64 cur=r;
carry=r>>64;
__builtin_ia32_adc(ret[k],cur,wcarry);
}
while(carry||wcarry){
__builtin_ia32_adc(ret[k],carry,wcarry);
carry=0;k++;
}
}
while(!ret.empty()&&ret.back()==0)ret.pop_back();
data=ret;
return *this;
}
bigint &operator/=(const bigint &a){
if(a.digit()>digit()){
data.clear();
return *this;
}
st z=digit()-a.digit();
std::vector<u64> ret;
while(1){
bigint tmp=a<<z;
if(tmp<=*this){
*this-=tmp;
st v1=z>>6;
if(ret.size()<=v1)ret.resize(v1+1);
ret[v1]|=(u64)(1)<<(z&63);
}
if(!z)break;
z--;
}
data=ret;
return *this;
}
bigint &operator%=(const bigint &a){
if(a.digit()>digit())return *this;
st z=digit()-a.digit();
while(1){
bigint tmp=a<<z;
if(tmp<=*this)*this-=tmp;
if(!z)break;
z--;
}
return *this;
}
bigint operator+(const bigint &a)const{return bigint(*this)+=a;}
bigint operator-(const bigint &a)const{return bigint(*this)-=a;}
bigint operator*(const bigint &a)const{return bigint(*this)*=a;}
bigint operator/(const bigint &a)const{return bigint(*this)/=a;}
bigint operator%(const bigint &a)const{return bigint(*this)%=a;}
};
std::istream &operator>>(std::istream &st,bigint &a){
std::string s;st>>s;a=bigint(s);return st;
}
std::ostream &operator<<(std::ostream &st,const bigint &a){
return st<<(std::string)(a);
}
int S,T,n,m;
bigint k,inf;
struct matrix
{
bigint d[N+1][N+1];
};
matrix e,c,nw,rst,dst;
matrix operator * (matrix a,matrix b)
{
c=dst;
for (int i=1;i<=n;++i)
for (int k=1;k<=n;++k)
if (a.d[i][k]!=inf)
{
for (int j=1;j<=n;++j) c.d[i][j]=min(c.d[i][j],a.d[i][k]+b.d[k][j]);
}
return c;
}
matrix fast_pow(matrix a,bigint b)
{
matrix res=e,mul=a;
while (b)
{
if (b%2==1) res=res*mul;
mul=mul*mul,b>>=1;
}
return res;
}
int main()
{
string s;
int x,y;
long long z;
S=read(),T=read(),inf=1;
for (int i=1;i<=120;++i) inf=inf*2;
while (T--)
{
n=read(),m=read(),cin>>s,k=0;
for (int i=0;i<s.length();++i) k=k*10+s[i]-'0';
for (int i=1;i<=n;++i)
for (int j=1;j<=n;++j)
e.d[i][j]=(i==j)?0:inf,nw.d[i][j]=dst.d[i][j]=inf;
for (int i=1;i<=m;++i) x=read(),y=read(),z=read(),nw.d[x][y]=min(nw.d[x][y],(bigint)(z));
rst=fast_pow(nw,k);
for (int i=1;i<=n;++i)
{
if (rst.d[1][i]==inf) printf("-1 ");
else printf("%llu ",(unsigned long long)(rst.d[1][i]%mod));
}
puts("");
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Subtask #1:
score: 0
Time Limit Exceeded
Test #1:
score: 10
Accepted
time: 2859ms
memory: 30188kb
input:
1 1 100 101 899539897889989959 74 35 910832669819965536 35 85 910832669819965536 85 88 910832669819965536 88 30 910832669819965536 30 58 910832669819965536 58 60 910832669819965536 60 34 910832669819965536 34 8 910832669819965536 8 67 910832669819965536 67 89 910832669819965536 89 32 910832669819965...
output:
395495792 395495781 395495783 395495839 395495793 395495789 395495754 395495832 395495845 395495755 395495823 395495773 395495753 395495800 395495782 395495763 395495847 395495761 395495794 395495791 395495786 395495821 395495798 395495765 395495772 395495770 395495757 395495819 395495843 395495828 ...
result:
ok 100 numbers
Test #2:
score: -10
Time Limit Exceeded
input:
1 1 100 200 998858598565699977 89 61 596014036562538539 89 84 921297646113897322 61 84 946923234442637386 61 35 641628261157284465 84 35 979893473772327497 84 78 700172488379560611 35 78 963617193748189613 35 54 951598888254521423 78 54 680825215292116806 78 21 737055858973038555 54 21 7491794406112...
output:
590375247 265938345 203065828 597548045 369717762 226160283 377877020 360218254 956162456 408060901 387231165 759578975 67601808 790211315 608425007 343195480 177353482 436533546 717630459 417099733 542227025 861764246 913806375 587268602 989846681 435016550 66609901 817090566 256847656 844441854 94...
result:
Subtask #2:
score: 0
Time Limit Exceeded
Test #7:
score: 0
Time Limit Exceeded
input:
2 1 300 598 8179377797889487867988994778539839593376697796496698959964978969 1 2 977880533270721156 2 1 977880533270721156 2 3 977880533270721156 3 2 977880533270721156 3 4 977880533270721156 4 3 977880533270721156 4 5 977880533270721156 5 4 977880533270721156 5 6 977880533270721156 6 5 977880533270...
output:
result:
Subtask #3:
score: 0
Skipped
Dependency #2:
0%
Subtask #4:
score: 0
Skipped
Dependency #1:
0%
Subtask #5:
score: 0
Skipped
Dependency #1:
0%
Subtask #6:
score: 0
Skipped
Dependency #3:
0%