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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#120587 | #3276. 出题高手 | zhouhuanyi | 45 | 994ms | 43292kb | C++11 | 3.2kb | 2023-07-06 22:39:04 | 2023-07-06 22:39:05 |
Judging History
answer
#include<iostream>
#include<cstdio>
#include<vector>
#define N 1000000
#define inf 1e9
using namespace std;
int read()
{
char c=0;
int sum=0,f=1;
while (c!='-'&&(c<'0'||c>'9')) c=getchar();
if (c=='-') c=getchar(),f=-1;
while ('0'<=c&&c<='9') sum=sum*10+c-'0',c=getchar();
return sum*f;
}
long long gcd(long long a,long long b)
{
if (!b) return a;
return gcd(b,a%b);
}
struct reads
{
int l,r,num;
};
struct rds
{
long long a;
int b;
bool operator < (const rds &t)const
{
return a*t.b<b*t.a;
}
};
rds ans[N+1],A[N+1],B[N+1];
int n,m,a[N+1],s[N+1],dque[N+1],top,dque2[N+1],top2,tong[N+1],length,tong2[N+1],length2,tong3[N+1],length3,tong4[N+1],length4,ps[N+1],ps2[N+1],ps3[N+1],ps4[N+1];
void solve(int l,int r,vector<reads>p)
{
if (l==r||p.empty()) return;
int mid=(l+r)>>1,minn=inf,maxn=-inf,sl=inf,sr=0;
vector<reads>tA;
vector<reads>tB;
for (int i=0;i<p.size();++i)
if (p[i].l<=mid&&mid+1<=p[i].r)
sl=min(sl,p[i].l),sr=max(sr,p[i].r);
length=length2=top=top2=0,A[mid+1]=(rds){-1,0},B[mid]=(rds){-1,0};
for (int i=mid;i>=sl;--i)
{
A[i]=A[i+1];
while (top&&s[dque[top]]<=s[i]) top--;
while (top2&&s[dque2[top2]]>=s[i]) top2--;
for (int j=1;j<=top;++j) A[i]=max(A[i],(rds){1ll*(s[i]-s[dque[j]])*(s[i]-s[dque[j]]),dque[j]-i});
for (int j=1;j<=top2;++j) A[i]=max(A[i],(rds){1ll*(s[i]-s[dque2[j]])*(s[i]-s[dque2[j]]),dque2[j]-i});
dque[++top]=i,dque2[++top2]=i;
}
top=top2=0;
for (int i=mid+1;i<=sr;++i)
{
B[i]=B[i-1];
while (top&&s[dque[top]]<=s[i]) top--;
while (top2&&s[dque2[top2]]>=s[i]) top2--;
for (int j=1;j<=top;++j) B[i]=max(B[i],(rds){1ll*(s[i]-s[dque[j]])*(s[i]-s[dque[j]]),i-dque[j]});
for (int j=1;j<=top2;++j) B[i]=max(B[i],(rds){1ll*(s[i]-s[dque2[j]])*(s[i]-s[dque2[j]]),i-dque2[j]});
dque[++top]=i,dque2[++top2]=i;
}
for (int i=mid;i>=sl;--i)
{
if (s[i]<minn) minn=s[i],tong[++length]=i;
if (s[i]>maxn) maxn=s[i],tong2[++length2]=i;
ps[i]=length,ps2[i]=length2;
}
minn=inf,maxn=-inf;
for (int i=mid+1;i<=sr;++i)
{
if (s[i]<minn) minn=s[i],tong3[++length3]=i;
if (s[i]>maxn) maxn=s[i],tong4[++length4]=i;
ps3[i]=length3,ps4[i]=length4;
}
for (int i=0;i<p.size();++i)
{
if (p[i].r<=mid) tA.push_back(p[i]);
else if (p[i].l>=mid+1) tB.push_back(p[i]);
else
{
ans[p[i].num]=max(A[p[i].l],B[p[i].r]);
for (int j=1;j<=ps[p[i].l];++j)
for (int k=1;k<=ps4[p[i].r];++k)
ans[p[i].num]=max(ans[p[i].num],(rds){1ll*(s[tong4[k]]-s[tong[j]])*(s[tong4[k]]-s[tong[j]]),tong4[k]-tong[j]});
for (int j=1;j<=ps2[p[i].l];++j)
for (int k=1;k<=ps3[p[i].r];++k)
ans[p[i].num]=max(ans[p[i].num],(rds){1ll*(s[tong3[k]]-s[tong2[j]])*(s[tong3[k]]-s[tong2[j]]),tong3[k]-tong2[j]});
}
}
solve(l,mid,tA),solve(mid+1,r,tB);
return;
}
int main()
{
int l,r;
vector<reads>p;
n=read();
for (int i=1;i<=n;++i) a[i]=read(),s[i]=s[i-1]+a[i];
m=read();
for (int i=1;i<=m;++i) l=read(),r=read(),p.push_back((reads){l-1,r,i});
solve(0,n,p);
for (int i=1;i<=m;++i) printf("%lld %lld\n",ans[i].a/gcd(ans[i].a,ans[i].b),ans[i].b/gcd(ans[i].a,ans[i].b));
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Subtask #1:
score: 0
Wrong Answer
Test #1:
score: 0
Wrong Answer
time: 994ms
memory: 34668kb
input:
2000 -113 314 -664 697 211 -199 -38 -190 8 -661 910 -811 -113 942 77 433 -261 -368 129 -525 968 -608 -21 38 -562 438 -935 -228 220 333 985 -430 916 586 764 476 794 664 383 503 206 -60 380 -130 -988 -904 -996 -304 -286 31 114 119 850 -942 714 -369 -842 250 -192 -462 -727 -427 -602 126 231 718 121 559...
output:
54826875 11 -256 183 32 -19 -2 251 1 -90 1 -8 9 -994 0 1 0 1 1 -8 0 1 -27 11 0 1 -49 86 225 -116 -2 53 1 -90 0 1 1 -827 -2 251 89605156 31 8543929 4 0 1 9 -994 8 -109 8543929 4 35688676 11 0 1 9216 -11 8 -109 0 1 0 1 9 -994 529 -129 3 -167 1 -440 -25 1 -12 37 1458000 1 -4 561 16 -131 -49 86 8 -109 0...
result:
wrong answer 3rd numbers differ - expected: '14638276', found: '-256'
Subtask #2:
score: 15
Accepted
Test #6:
score: 15
Accepted
time: 36ms
memory: 32916kb
input:
100000 754 792 -680 426 425 347 481 -690 530 378 73 -907 -431 45 -530 -552 440 -890 -15 712 695 -679 -310 13 718 805 193 -291 -877 -74 -355 511 -679 -395 166 -710 -657 -19 874 26 832 507 854 -289 700 -404 472 -302 -977 8 -698 40 766 705 369 838 700 -964 552 -535 -75 -608 -181 -503 468 447 772 904 -2...
output:
466344025 67
result:
ok 2 number(s): "466344025 67"
Test #7:
score: 0
Accepted
time: 33ms
memory: 28852kb
input:
100000 -387 -313 -47 -714 -74 239 8 591 541 -633 -660 981 -230 -148 -813 -802 -108 -543 -640 50 962 137 -972 -936 -975 885 793 -541 932 861 -348 885 -280 -977 -677 964 355 604 54 -977 -548 979 -516 136 437 -697 -23 -748 492 897 -538 785 617 -840 675 -978 307 -288 -493 682 678 -623 613 762 -622 -283 ...
output:
2417885584 385
result:
ok 2 number(s): "2417885584 385"
Test #8:
score: 0
Accepted
time: 33ms
memory: 30852kb
input:
100000 -127 303 92 -235 -794 293 -272 199 -175 693 -799 -750 -501 -283 -358 -657 -867 -152 -399 -299 530 -5 285 959 390 -928 617 -478 -889 -133 -492 -855 986 -664 -984 -690 887 -738 39 -570 -268 -767 640 883 711 -748 -75 426 -268 -541 -926 -792 902 214 561 -428 -285 781 -225 -299 -233 134 -896 569 -...
output:
202236841 30
result:
ok 2 number(s): "202236841 30"
Test #9:
score: 0
Accepted
time: 48ms
memory: 28824kb
input:
100000 -340 -696 48 -515 -584 -60 -888 257 214 -889 782 915 905 -964 -536 459 779 -519 -338 -867 622 -902 655 -153 600 -117 269 -887 -242 -985 -267 132 406 98 -368 400 -871 -908 -489 118 -140 -755 -869 -943 965 609 47 -748 194 -160 994 527 871 119 -891 580 -687 865 826 56 -978 -775 -47 792 313 -944 ...
output:
272184004 39
result:
ok 2 number(s): "272184004 39"
Test #10:
score: 0
Accepted
time: 30ms
memory: 36416kb
input:
100000 -736 -691 738 209 -411 -136 792 -110 -441 -753 254 744 -958 -317 312 856 245 995 912 87 -830 131 393 37 -400 934 279 -784 -308 618 -647 967 527 -162 -874 -770 188 -917 -855 772 482 -373 -749 -40 80 -459 710 -354 221 -343 -132 -947 -445 62 -744 851 848 554 -530 -892 -721 -910 -642 -138 -480 -7...
output:
393070276 51
result:
ok 2 number(s): "393070276 51"
Subtask #3:
score: 30
Accepted
Test #11:
score: 30
Accepted
time: 321ms
memory: 43292kb
input:
500000 794 -75 -596 -322 -945 -908 -609 -164 488 626 -877 -710 140 -120 -475 -837 738 669 634 -643 -682 667 816 -785 -608 -836 -860 -932 242 70 -620 268 -121 288 209 -392 732 750 558 -480 565 327 -217 -891 767 211 -690 -66 813 -889 952 615 432 19 411 800 678 718 522 422 940 -510 -544 449 -357 640 40...
output:
1878442281 242
result:
ok 2 number(s): "1878442281 242"
Test #12:
score: 0
Accepted
time: 344ms
memory: 42992kb
input:
500000 145 33 695 -456 761 -556 698 272 121 -445 100 -93 954 485 161 798 -279 921 456 570 151 -880 456 -640 -69 385 -301 -707 -84 -514 -964 597 874 346 841 274 -727 -177 -44 -883 903 -792 -776 926 416 -862 -247 -985 518 674 174 535 -295 960 -952 722 -947 -365 366 -520 -60 -404 800 811 -139 779 735 3...
output:
457831609 56
result:
ok 2 number(s): "457831609 56"
Test #13:
score: 0
Accepted
time: 327ms
memory: 43080kb
input:
500000 762 -391 336 983 -962 920 -428 955 487 -525 281 514 851 -508 607 153 -439 -307 345 557 -615 -997 272 813 -556 -69 -401 -625 143 -142 -499 380 749 613 -190 173 -633 -489 -285 183 -799 645 -863 379 169 -177 993 -184 753 346 58 770 254 705 -467 -700 -337 587 -333 685 -1 -618 -961 327 -33 -722 65...
output:
1160015481 110
result:
ok 2 number(s): "1160015481 110"
Test #14:
score: 0
Accepted
time: 315ms
memory: 43280kb
input:
500000 -819 -236 -303 662 -316 -328 51 821 717 -423 -565 -394 858 -816 -246 -993 831 -999 237 779 52 -642 826 945 307 -675 83 -715 -797 -451 -250 996 53 -765 -869 -717 -126 -250 532 -848 82 -100 542 80 798 701 -648 -433 234 362 462 -770 554 -211 -368 -653 897 -940 416 632 734 -18 727 319 -328 697 11...
output:
188897536 23
result:
ok 2 number(s): "188897536 23"
Test #15:
score: 0
Accepted
time: 538ms
memory: 43292kb
input:
500000 -161 619 -969 31 102 781 561 617 -685 -814 385 -998 911 -206 -404 519 276 -318 -731 -908 901 856 839 333 124 481 29 407 -315 -219 896 956 -286 996 -991 -800 951 109 -846 624 750 -88 955 -752 -814 134 -316 -777 844 391 359 -324 789 -713 -620 849 -553 575 357 792 -735 -828 373 378 -213 -501 -29...
output:
167832025 17
result:
ok 2 number(s): "167832025 17"
Subtask #4:
score: 0
Time Limit Exceeded
Test #16:
score: 0
Time Limit Exceeded
input:
100000 -496 -233 354 -632 -196 177 -878 -255 -19 -636 685 -70 101 -975 -406 -988 -965 -205 563 -766 763 511 -116 -746 -129 14 106 928 -457 -257 -283 226 3 899 -359 -792 615 490 -57 986 -243 624 -239 931 -555 -821 -72 -611 -380 -397 248 -132 956 -195 -322 -231 319 -214 837 -379 -931 -301 -4 -673 280 ...
output:
result:
Subtask #5:
score: 0
Time Limit Exceeded
Test #31:
score: 0
Time Limit Exceeded
input:
100000 139 -485 -497 -818 254 169 -560 22 377 -67 -243 -75 743 -788 -676 -26 -775 371 576 -303 54 733 422 800 445 687 479 -16 -288 259 783 -586 912 616 439 -416 676 -555 172 659 501 -868 337 22 -60 260 603 -982 -149 466 769 -595 -117 949 -544 904 753 20 776 175 -888 937 -792 -647 -615 59 -298 452 -6...