ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#204865 | #3631. 解决难题 | smallstone | 100 | 1450ms | 1972kb | C++11 | 1.5kb | 2024-06-10 11:45:18 | 2024-06-10 12:07:06 |
answer
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
// using LL = __int128
#define mod 1000000007ll
ll a[333][333], n;
ll bigmul(ll a, ll b, ll m)
{
unsigned long long c =
(unsigned long long)a * b -
(unsigned long long)((long double)a / m * b + 0.5L) * m;
return (c + m) % m;
}
ll qpow(ll x, ll y)
{
ll ans = 1, res = x % mod;
while (y)
{
if (y & 1)
ans = bigmul(ans, res, mod);
res = bigmul(res, res, mod);
y >>= 1;
}
return ans;
}
ll inv(ll x)
{
return qpow(x, mod - 2);
}
void solve()
{
for (int i = 1; i <= n; i++)
{
int p = i;
for (int j = 1; j <= n; j++)
{
if (j < i && a[j][j])
continue;
if (a[j][i] > a[p][i])
p = j;
}
for (int j = 1; j <= n + 1; j++)
swap(a[i][j], a[p][j]);
if (!a[i][i])
continue;
for (int j = 1; j <= n; j++)
if (j != i)
{
ll f = a[j][i] * inv(a[i][i]) % mod;
for (int k = 1; k <= n + 1; k++)
{
a[j][k] = a[j][k] - f * a[i][k] % mod;
a[j][k] = (a[j][k] % mod + mod) % mod;
}
}
}
for(int i = 1 ; i <= n ; i++){
a[i][n + 1] = a[i][n + 1] * inv(a[i][i]) % mod;
printf("%lld ", a[i][n + 1]);
}
}
int main()
{
scanf("%lld", &n);
for (int i = 1; i <= n; i++)
for (int j = 1; j <= n; j++)
scanf("%1lld", &a[j][i]);
for (int i = 1; i <= n; i++)
{
scanf("%lld", &a[i][n + 1]);
a[i][n + 1] %= mod;
a[i][n + 1] = mod - a[i][n + 1];
a[i][n + 1] %= mod;
}
solve();
return 0;
}
Details
小提示:点击横条可展开更详细的信息
Test #1:
score: 10
Accepted
time: 0ms
memory: 1200kb
input:
5 76703 98327 73227 92255 86574 999999955 999999969 999999986 999999982 999999973
output:
0 3 0 1 2
result:
ok single line: '0 3 0 1 2 '
Test #2:
score: 10
Accepted
time: 0ms
memory: 1204kb
input:
6 422776 414954 155320 199876 991820 249380 999999971 999999942 999999963 999999944 999999971 999999...
output:
0 1 2 3 3 0
result:
ok single line: '0 1 2 3 3 0 '
Test #3:
score: 10
Accepted
time: 0ms
memory: 1204kb
input:
7 8466030 1242063 9970648 8406710 6727521 3812850 6818000 999999949 999999932 999999967 999999975 99...
output:
1 2 3 0 0 3 2
result:
ok single line: '1 2 3 0 0 3 2 '
Test #4:
score: 10
Accepted
time: 208ms
memory: 1972kb
input:
300 270000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
output:
916258358 519022538 821314397 887968260 11163141 313697293 687278761 469796877 984340226 751985575 5...
result:
ok single line: '916258358 519022538 821314397 ... 331722994 308740977 758811862 '
Test #5:
score: 10
Accepted
time: 203ms
memory: 1968kb
input:
300 670000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
output:
793590813 38968613 380775900 856812394 892644411 739342894 618361240 909158937 596399756 765250805 3...
result:
ok single line: '793590813 38968613 380775900 8... 600870385 829088743 827827874 '
Test #6:
score: 10
Accepted
time: 205ms
memory: 1972kb
input:
300 260000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
output:
260857797 558914696 641474878 530689259 774125674 873816490 135582984 53553722 208459287 483548768 8...
result:
ok single line: '260857797 558914696 641474878 ... 873813040 349436502 601876619 '
Test #7:
score: 10
Accepted
time: 209ms
memory: 1968kb
input:
300 542128399337590285552625503935250783437069735052009124583459108286630823938623650996978703141295...
output:
459797728 372681007 711682710 189156773 637377863 425217164 697243107 969129956 342783347 843862464 ...
result:
ok single line: '459797728 372681007 711682710 ... 945919047 546146588 650580996 '
Test #8:
score: 10
Accepted
time: 207ms
memory: 1968kb
input:
300 343453698687744797543345812953303350530512599745228777654167066084273997667944678773815747388110...
output:
337130183 892627090 271144213 863033645 813826393 145830026 919497590 408492009 659875616 857127694 ...
result:
ok single line: '337130183 892627090 271144213 ...9 215066431 66494347 424629741 '
Test #9:
score: 10
Accepted
time: 210ms
memory: 1972kb
input:
300 773493559344634369215007470620961968422951355377925074753917769102332126548041118014733383081237...
output:
509429906 707540433 826810458 540705775 986479660 571475627 440514599 552886801 271935147 575425656 ...
result:
ok single line: '509429906 707540433 826810458 ... 193041818 291874845 493645754 '
Test #10:
score: 10
Accepted
time: 208ms
memory: 1968kb
input:
300 670162159026137251715327745422913995527399141028480083023288273026330075072367299393258107821374...
output:
681729629 227486508 91304693 509549909 867960922 705949224 662769082 287216122 589027416 883658154 6...
result:
ok single line: '681729629 227486508 91304693 5... 757156478 107189872 267694498 '
Extra Test:
score: 0
Extra Test Passed