QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#345976 | #8312. Fly Me To The Moon | black_moonrise | AC ✓ | 7037ms | 93632kb | C++14 | 6.4kb | 2024-03-07 18:40:51 | 2024-03-07 18:40:52 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int MAXN = 1e5 + 5;
#define MP make_pair
#define PB push_back
#define FF first
#define SS second
typedef long long ll;
const int mod = 998244353;
const int maxsize = 2222;
const int proot = 3;
const int maxn = 2222;
ll qpow(ll x, ll y) {
ll ret = 1;
while(y) {
if(y&1) ret = ret * x % mod;
x = x * x % mod;
y >>= 1;
}
return ret;
}
struct ntt {
int n, M, w_pre[maxsize], inv[maxsize];
ntt() {
M = 1;
while(M*2<maxsize) M <<= 1;
int w = qpow(proot, (mod - 1) / M);
w_pre[0] = 1;
for(int i=1; i<=M; i++) w_pre[i] = 1ll * w_pre[i-1] * w % mod;
inv[1] = 1;
for(int i=2; i<maxsize; i++) inv[i] = mod - 1ll * inv[mod % i] * (mod / i) % mod;
}
void FFTinit(int sz) {
n = 1;
while(n < sz) n <<= 1;
if (n > M) cout<<n<<endl;
assert(n <= M);
}
void FFT(int a[], int coef) {
typedef unsigned long long ull;
const ull mod2 = 1ull * mod * mod;
static ull na[maxsize];
for(int i=0, j=0; i<n; i++) {
na[j] = a[i] < 0 ? (a[i] + mod) : a[i];
for(int l=n>>1; (j^=l) < l; l>>=1) continue;
}
static int w[maxsize];
for(int l=1; l<n; l<<=1) {
int l2 = l + l, u = M / l2;
if(coef == 1) {
for(int j=0, t=0; j<l; j++, t+=u) w[j] = w_pre[t];
}
else {
for(int j=0, t=M; j<l; j++, t-=u) w[j] = w_pre[t];
}
for(int i=0; i<n; i+=l2) {
for(int j=0; j<l; j++) {
ull tmp = na[i+j+l] % mod * w[j];
na[i+j+l] = na[i+j] - tmp + mod2;
na[i+j] += tmp;
}
}
if(l == (1 << 8) || l == (1 << 16)) for(int i=0; i<n; i++) na[i] %= mod;
}
for(int i=0; i<n; i++) a[i] = 1ll * na[i] % mod * (coef == -1?inv[n]:1) % mod;
}
vector<int> multi(vector<int> &A, vector<int> &B, int N = -1) {
if(N == -1) N = max(0, int(A.size() + B.size()) - 1);
FFTinit(A.size() + B.size());
static int a[maxsize], b[maxsize];
for(int i=0; i<n; i++) a[i] = i < A.size() ? A[i] % mod : 0;
for(int i=0; i<n; i++) b[i] = i < B.size() ? B[i] % mod : 0;
FFT(a, 1);
FFT(b, 1);
for(int i=0; i<n; i++) a[i] = 1ll * a[i] * b[i] % mod;
FFT(a, -1);
vector<int> ret(N);
for(int i=0; i<N; i++) ret[i] = a[i];
return ret;
}
} M1;
namespace MUL {
int a[maxn][maxn], b[maxn][maxn], c[maxn][maxn];
int sz;
void FFT(int a[maxn][maxn], int coef) {
if (coef==1) {
for (int i=0; i<sz; i++) {
M1.FFT(a[i], 1);
}
for (int i=0; i<sz; i++) {
for (int j=0; j<sz; j++) {
if (i<j) {
swap(a[i][j], a[j][i]);
}
}
}
for (int i=0; i<sz; i++) {
M1.FFT(a[i], 1);
}
for (int i=0; i<sz; i++) {
for (int j=0; j<sz; j++) {
if (i<j) {
swap(a[i][j], a[j][i]);
}
}
}
} else {
for (int i=0; i<sz; i++) {
for (int j=0; j<sz; j++) {
if (i<j) {
swap(a[i][j], a[j][i]);
}
}
}
for (int i=0; i<sz; i++) {
M1.FFT(a[i], -1);
}
for (int i=0; i<sz; i++) {
for (int j=0; j<sz; j++) {
if (i<j) {
swap(a[i][j], a[j][i]);
}
}
}
for (int i=0; i<sz; i++) {
M1.FFT(a[i], -1);
}
}
}
void mul(int an, int am, int bn, int bm) {
int _sz = max(an + bn, am + bm) + 1;
M1.FFTinit(_sz);
sz = M1.n;
for (int i=0; i<sz; i++) for (int j=0; j<sz; j++) {
a[i][j] = i < an && j < am ? a[i][j] % mod : 0;
b[i][j] = i < bn && j < bm ? b[i][j] % mod : 0;
}
FFT(a, 1);
FFT(b, 1);
for (int i=0; i<sz; i++) for (int j=0; j<sz; j++) {
c[i][j] = 1ll * a[i][j] * b[i][j] % mod;
}
FFT(c, -1);
}
}
int fac[maxn], invf[maxn];
int n, m;
int d[maxn];
int f[maxn][maxn], g[maxn][maxn], dp[maxn];
vector<pair<int,int> > pt;
void upd(int &x, int v) {
x = (x+v)%mod;
}
int a[maxn][maxn];
void cont(int xl, int xr, int yl, int yr, int XL, int XR, int YL, int YR) {
for (int i=xl; i<=xr; i++) for (int j=yl; j<=yr; j++) {
MUL::a[i-xl][j-yl] = f[i][j];
}
for (int i=0; i<=XR-XL; i++) for (int j=0; j<=YR-YL; j++) {
MUL::b[i][j] = g[i][j];
}
MUL::mul(xr-xl+1, yr-yl+1, XR-XL+1, YR-YL+1);
for (int i=XL; i<=XR; i++) for (int j=YL; j<=YR; j++) {
if (i>=xl && i<=xr && j>=yl && j<=yr) continue;
if (i>=xl && j>=yl) upd(a[i][j], MUL::c[i-xl][j-yl]);
}
}
void solve(int xl, int xr, int yl, int yr) {
if (xl==xr) {
f[xl][yl] = a[xl][yl] + (xl==0 && yl==0);
return;
}
int xm = xl + xr >> 1;
int ym = yl + yr >> 1;
solve(xl, xm, yl, ym);
cont(xl, xm, yl, ym, xl, xr, yl, yr);
solve(xm+1, xr, yl, ym);
cont(xm+1, xr, yl, ym, xl, xr, yl, yr);
solve(xl, xm, ym+1, yr);
cont(xl, xm, ym+1, yr, xl, xr, yl, yr);
solve(xm+1, xr, ym+1, yr);
}
void calc_f() {
// f[0][0] = 1;
// for (int i=0; i<=1000; i++) for (int j=0; j<=1000; j++) {
// for (int x=0; x<=10; x++) for (int y=0; y<=10; y++) {
// upd(f[i+x][j+y], 1ll * f[i][j] * g[x][y] % mod);
// }
// }
solve(0, 1023, 0, 1023);
}
int getf(pair<int,int> x, pair<int,int> y) {
int i = y.FF - x.FF;
int j = y.SS - x.SS;
if (i < 0 || j < 0) return 0;
return f[i][j];
}
int main() {
// MUL::a[0][1] = 1;
// MUL::a[1][0] = 2;
// MUL::b[0][0] = 3;
// MUL::b[1][1] = 4;
// MUL::mul(2, 2, 2, 2);
// for (int i=0; i<4; i++) {
// for (int j=0; j<4; j++) {
// cout<<MUL::c[i][j]<<" ";
// }cout<<endl;
// }
fac[0] = 1;
for(int i=1; i<maxn; i++) fac[i] = 1ll * i * fac[i-1] % mod;
invf[maxn-1] = qpow(fac[maxn-1], mod - 2);
for(int i=maxn-1; i>=1; i--) invf[i-1] = 1ll * i * invf[i] % mod;
scanf("%d%d", &n, &m);
for (int i=1; i<=n; i++) {
scanf("%d", &d[i]);
}
for (int i=1; i<=m; i++) {
int x, y;
scanf("%d%d", &x, &y);
pt.PB(MP(x, y));
}
pt.PB(MP(0, 0));
for (int i=1; i<=n; i++) {
for (int j=0; j<=d[i]; j++) {
int tsqr = d[i] * d[i] - j * j;
int tmp = sqrt(tsqr);
while ((tmp+1)*(tmp+1) <= tsqr) tmp++;
g[j][tmp] ++;
}
}
for (int i=0; i<=1000; i++) {
for (int j=1000; j>0; j--) {
g[i][j-1] = (g[i][j-1] + g[i][j]) % mod;
}
}
g[0][0] = 0;
calc_f();
// for (int i=0; i<10; i++) {
// for (int j=0; j<10; j++) {
// cout<<f[i][j]<<" ";
// }cout<<endl;
// }
sort(pt.begin(), pt.end());
reverse(pt.begin(), pt.end());
for (int i=0; i<pt.size(); i++) {
dp[i] = getf(pt[i], MP(1000, 1000));
for (int j=0; j<i; j++) {
dp[i] = (dp[i] - 1ll * dp[j] * getf(pt[i], pt[j])) % mod;
}
}
cout<<(dp[pt.size()-1] + mod) % mod<<endl;
return 0;
}
这程序好像有点Bug,我给组数据试试?
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 6963ms
memory: 89188kb
input:
1 0 1
output:
472799582
result:
ok single line: '472799582'
Test #2:
score: 0
Accepted
time: 6945ms
memory: 88764kb
input:
1 1 1 500 500
output:
447362327
result:
ok single line: '447362327'
Test #3:
score: 0
Accepted
time: 6924ms
memory: 89900kb
input:
1 0 2
output:
277036758
result:
ok single line: '277036758'
Test #4:
score: 0
Accepted
time: 6920ms
memory: 88632kb
input:
1 1 402 305 914
output:
902644270
result:
ok single line: '902644270'
Test #5:
score: 0
Accepted
time: 6955ms
memory: 89312kb
input:
1 10 819 767 245 718 363 832 537 648 98 622 692 995 435 641 522 1000 524 220 848 657 772
output:
728068212
result:
ok single line: '728068212'
Test #6:
score: 0
Accepted
time: 6942ms
memory: 89288kb
input:
1 100 51 779 670 872 824 190 278 764 704 804 857 215 41 43 329 735 229 733 463 594 905 740 538 245 254 556 174 523 388 0 722 464 464 62 31 554 24 935 438 738 751 250 849 803 437 856 887 745 187 52 845 855 613 344 256 705 694 897 743 682 796 966 471 268 430 937 160 629 629 641 98 329 470 49 650 463 6...
output:
517392311
result:
ok single line: '517392311'
Test #7:
score: 0
Accepted
time: 7037ms
memory: 88148kb
input:
1 1000 60 654 936 693 232 484 105 592 624 118 698 490 632 411 327 487 16 51 399 408 241 39 574 39 994 777 881 506 360 445 779 186 319 651 673 939 828 845 950 81 613 747 548 176 72 283 422 866 639 256 790 168 672 551 308 265 204 542 587 800 837 299 347 485 296 410 832 894 123 785 795 705 20 360 762 2...
output:
226697311
result:
ok single line: '226697311'
Test #8:
score: 0
Accepted
time: 6938ms
memory: 90576kb
input:
10 1 668 228 643 930 253 838 234 427 994 555 769 217
output:
706413856
result:
ok single line: '706413856'
Test #9:
score: 0
Accepted
time: 6906ms
memory: 90064kb
input:
10 10 210 428 49 365 404 258 968 520 718 191 240 37 665 794 444 403 492 764 38 1 549 456 32 847 95 499 490 875 983 553
output:
866541606
result:
ok single line: '866541606'
Test #10:
score: 0
Accepted
time: 6904ms
memory: 89472kb
input:
10 100 234 300 17 327 773 617 460 612 25 853 332 250 788 770 578 304 378 268 648 555 820 600 989 317 319 383 904 612 22 17 511 183 896 125 963 958 722 984 681 766 420 198 492 686 285 634 15 40 531 325 414 10 581 72 93 528 771 235 906 696 255 785 493 858 804 452 899 585 824 334 798 579 161 357 615 20...
output:
857409499
result:
ok single line: '857409499'
Test #11:
score: 0
Accepted
time: 6957ms
memory: 89948kb
input:
10 1000 433 514 452 478 193 55 745 40 365 655 143 730 490 83 890 273 699 469 293 532 971 535 204 959 370 992 238 858 306 647 273 701 661 560 9 857 27 635 564 666 83 239 640 989 738 290 316 584 687 656 587 263 969 245 782 395 958 638 551 128 570 105 776 244 442 723 708 963 527 978 714 479 331 613 373...
output:
99542416
result:
ok single line: '99542416'
Test #12:
score: 0
Accepted
time: 6898ms
memory: 92104kb
input:
100 1 164 898 529 41 491 208 409 533 860 311 271 48 914 918 256 757 19 647 652 343 880 995 504 120 864 995 499 86 285 823 793 816 445 147 923 501 314 789 733 861 507 305 623 566 249 669 933 528 955 461 511 665 874 472 497 331 957 313 756 665 463 735 595 101 348 397 471 477 479 315 180 409 183 739 91...
output:
30592831
result:
ok single line: '30592831'
Test #13:
score: 0
Accepted
time: 6910ms
memory: 90696kb
input:
100 10 689 629 128 228 488 666 155 67 260 881 474 235 69 580 605 622 791 551 274 3 90 106 875 180 905 787 566 632 75 865 300 521 61 618 602 575 487 806 667 276 914 193 643 646 760 397 517 249 252 214 991 530 709 708 817 220 224 692 146 407 547 720 515 772 131 754 745 778 583 773 943 557 602 644 954 ...
output:
523635681
result:
ok single line: '523635681'
Test #14:
score: 0
Accepted
time: 6932ms
memory: 91044kb
input:
100 100 95 994 231 565 335 495 270 478 781 36 769 597 839 828 489 262 736 223 835 21 136 11 865 239 113 534 479 687 91 470 143 682 24 697 206 387 449 381 260 792 863 9 16 506 131 690 106 905 470 48 927 86 665 366 545 808 567 317 124 144 734 193 826 332 82 954 272 783 994 381 279 679 809 809 4 559 94...
output:
226829327
result:
ok single line: '226829327'
Test #15:
score: 0
Accepted
time: 6940ms
memory: 93292kb
input:
100 1000 122 81 18 561 601 538 804 877 55 943 955 751 206 881 249 227 640 846 6 935 544 383 628 688 609 898 25 669 837 272 848 595 599 376 280 855 953 122 779 687 751 29 97 18 666 571 123 11 223 527 88 26 901 493 923 371 947 411 378 228 423 816 497 219 439 228 573 183 156 144 426 610 11 849 310 893 ...
output:
801536119
result:
ok single line: '801536119'
Test #16:
score: 0
Accepted
time: 6933ms
memory: 90648kb
input:
1000 1 347 291 904 415 766 616 892 80 210 2 855 907 49 874 156 630 623 472 636 474 871 591 458 258 398 844 133 304 822 802 393 360 789 888 566 875 355 777 944 622 831 195 941 968 259 49 650 927 564 305 662 956 187 967 70 762 390 616 264 187 383 832 543 507 348 693 181 939 350 465 84 719 138 779 52 7...
output:
949510956
result:
ok single line: '949510956'
Test #17:
score: 0
Accepted
time: 6977ms
memory: 90004kb
input:
1000 10 550 515 534 170 50 545 557 637 312 64 715 686 618 743 11 58 829 992 668 519 314 9 961 173 719 405 249 728 772 793 856 983 239 647 565 328 784 902 498 850 773 687 376 473 447 746 472 533 20 959 762 523 875 246 770 747 307 975 102 24 372 883 833 635 260 97 996 793 539 145 607 568 95 453 972 13...
output:
543205049
result:
ok single line: '543205049'
Test #18:
score: 0
Accepted
time: 6964ms
memory: 92844kb
input:
1000 100 1000 561 798 648 552 683 817 828 176 516 923 627 308 136 362 867 562 911 478 12 28 965 706 374 666 360 506 416 69 262 983 26 61 532 580 724 436 103 125 412 561 519 907 517 318 215 801 322 123 495 706 503 160 938 273 241 871 120 158 360 535 141 528 628 674 664 326 950 656 285 77 634 146 756 ...
output:
557427721
result:
ok single line: '557427721'
Test #19:
score: 0
Accepted
time: 6905ms
memory: 91476kb
input:
1000 1000 520 999 552 931 480 348 671 930 534 80 510 4 176 583 686 73 81 239 523 968 447 468 517 286 523 285 929 366 764 533 310 580 524 635 33 153 49 146 57 58 54 250 115 705 207 229 111 266 776 787 273 191 143 342 257 157 38 663 995 53 586 135 360 540 78 479 884 435 825 808 438 295 523 380 810 658...
output:
410377569
result:
ok single line: '410377569'
Test #20:
score: 0
Accepted
time: 6959ms
memory: 89800kb
input:
1000 1000 630 843 959 696 75 966 691 982 390 44 863 380 467 293 94 96 415 411 161 497 844 109 629 520 209 248 672 754 608 553 552 447 503 868 292 854 848 512 849 15 120 497 70 671 707 29 952 544 302 159 863 886 788 160 63 27 27 600 912 555 476 809 511 225 182 701 195 657 363 275 392 691 249 590 135 ...
output:
625394011
result:
ok single line: '625394011'
Test #21:
score: 0
Accepted
time: 6949ms
memory: 90556kb
input:
1000 1000 553 29 586 864 467 447 950 526 232 354 866 48 566 98 600 10 667 754 262 683 344 374 641 56 33 945 141 175 255 575 341 165 806 941 985 209 79 652 395 86 327 794 161 869 198 400 815 64 457 597 882 833 561 209 725 745 450 363 808 353 933 92 4 988 558 370 728 259 934 238 79 976 474 174 16 955 ...
output:
373678731
result:
ok single line: '373678731'
Test #22:
score: 0
Accepted
time: 6932ms
memory: 91940kb
input:
1000 1000 1 186 432 753 430 425 46 836 652 389 195 429 575 809 901 935 24 697 358 545 627 975 980 343 7 167 762 519 298 347 118 422 923 855 577 657 470 750 138 572 572 275 835 54 672 25 482 435 330 700 450 353 264 854 95 907 824 835 494 345 304 733 290 366 983 672 24 169 649 535 740 21 454 437 554 8...
output:
663460363
result:
ok single line: '663460363'
Test #23:
score: 0
Accepted
time: 6979ms
memory: 93632kb
input:
1000 1000 411 936 467 652 654 870 544 32 4 510 859 984 38 130 45 311 103 127 539 741 78 540 663 707 537 614 647 480 325 943 716 583 70 754 565 871 318 473 705 161 934 704 960 454 30 687 571 519 387 531 584 547 715 373 919 140 187 513 999 826 338 825 394 894 779 216 244 368 823 728 104 611 40 900 467...
output:
61802460
result:
ok single line: '61802460'
Test #24:
score: 0
Accepted
time: 6916ms
memory: 93140kb
input:
1000 1000 551 193 944 906 622 45 236 187 186 950 603 74 279 941 962 226 557 41 588 681 856 753 46 564 553 836 508 88 3 169 283 170 503 863 165 600 96 711 112 966 344 485 119 643 10 498 815 945 557 453 931 536 239 373 961 27 808 368 507 233 147 864 671 630 144 1 368 967 149 277 186 434 552 480 601 34...
output:
849139143
result:
ok single line: '849139143'
Test #25:
score: 0
Accepted
time: 6909ms
memory: 92220kb
input:
1000 1000 189 942 273 771 441 891 200 358 733 973 938 345 979 806 417 289 424 503 526 823 997 89 684 543 394 691 283 833 910 336 710 148 504 86 877 790 617 127 844 653 791 339 186 529 260 741 331 95 637 794 983 200 804 61 664 95 375 614 432 151 190 278 17 619 728 252 739 660 255 323 353 183 983 706 ...
output:
15494064
result:
ok single line: '15494064'
Test #26:
score: 0
Accepted
time: 6891ms
memory: 91824kb
input:
1000 1000 411 789 753 186 495 203 417 324 490 424 195 480 314 23 663 218 12 747 124 390 134 38 218 536 291 840 174 908 474 767 313 167 575 9 857 427 313 27 959 935 258 70 472 957 747 228 205 939 293 303 626 802 712 283 658 346 208 383 889 204 99 640 801 966 828 742 534 11 259 734 226 129 843 350 50 ...
output:
81830009
result:
ok single line: '81830009'
Extra Test:
score: 0
Extra Test Passed