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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#102666#5259. Skills in Pillszswzswzsw#AC ✓175ms14668kbC++141.8kb2023-05-03 15:42:562023-05-03 15:42:58

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-05-03 15:42:58]
  • 评测
  • 测评结果:AC
  • 用时:175ms
  • 内存:14668kb
  • [2023-05-03 15:42:56]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
int res;
int n,a,b,lsta,lstb;
int ans=1e9+7;;
void solve(int opt,int t,int t1,int t2)
{
	lsta=lstb=res=0;
	lsta=t1;lstb=t2;
	for(int i=1;i<=n;i++)
	{
		if(i-lsta>=a&&i-lstb>=b){
			opt^=t;res+=2;
			if(opt)lsta=i,lstb=i-1;
			else lsta=i-1,lstb=i;
		}
		else if(i-lsta>=a){
			++res;lsta=i;
		}
		else if(i-lstb>=b){
			++res;lstb=i;
		}
	}ans=min(res,ans);
}
const int N=2010000;
int dp1[N],dp2[N];
int posa,posb,pos0;//a<b;a>b;
void init(void)
{
	lsta=-1;lstb=0;
	for(int i=1;i;i++){
		if(i-lsta==a&&i-lstb==b){posa=i;break;}
		if(i-lsta==a)lsta=i;
		if(i-lstb==b)lstb=i;
	}
	lsta=0;lstb=-1;
	for(int i=1;i;i++){
		if(i-lsta==a&&i-lstb==b){posb=i;break;}
		if(i-lsta==a)lsta=i;
		if(i-lstb==b)lstb=i;
	}
	lsta=0;lstb=0;
	for(int i=1;i;i++){
		if(i-lsta==a&&i-lstb==b){pos0=i;break;}
		if(i-lsta==a)lsta=i;
		if(i-lstb==b)lstb=i;
	}return;
}
void solve2(void)
{
	if(n<pos0)ans=n/a+n/b;
	for(int i=1;i<=n;i++)
	{
		dp1[i]=dp2[i]=n*3;
		if(i<=pos0){
			dp1[i]=pos0/a+pos0/b;
			dp2[i]=pos0/a+pos0/b;
		}
		if(i-posa>0){
			dp1[i]=min(dp1[i-posa]+posa/b+(posa+1)/a,dp1[i]);
			dp2[i]=min(dp1[i-posa]+posa/b+(posa+1)/a,dp2[i]);
		}
		if(i-posb>0){
			dp1[i]=min(dp1[i],dp2[i-posb]+posb/a+(posb+1)/b);
			dp2[i]=min(dp2[i],dp2[i-posb]+posb/a+(posb+1)/b);
		}
	}
	for(int i=n;i>=n-posa&&i>0;i--)
		ans=min(ans,dp1[i]+(n-i)/b+(n-i+1)/a);
	for(int i=n;i>=n-posb&&i>0;i--)
		ans=min(ans,dp2[i]+(n-i)/a+(n-i+1)/b);
	return;
}
int gcd(int x,int y){
	return y?gcd(y,x%y):x;
}
int main()
{
	cin>>a>>b>>n;
	for(int i=-5;i<=0;i++)
		for(int j=-5;j<=0;j++){
				solve(1,0,i,j);
				solve(1,1,i,j);
				solve(0,0,i,j);
				solve(0,1,i,j);
		}
	if(gcd(a,b)==1)
	{
		init();
		solve2();
	}
	cout<<ans;
	return 0;
}
/*
2 4 11
*/

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 3328kb

input:

3 9 20

output:

8

result:

ok single line: '8'

Test #2:

score: 0
Accepted
time: 1ms
memory: 3312kb

input:

8 2 12

output:

7

result:

ok single line: '7'

Test #3:

score: 0
Accepted
time: 0ms
memory: 5324kb

input:

2 5 15

output:

10

result:

ok single line: '10'

Test #4:

score: 0
Accepted
time: 2ms
memory: 3508kb

input:

10 8 13

output:

2

result:

ok single line: '2'

Test #5:

score: 0
Accepted
time: 0ms
memory: 3252kb

input:

6 6 19

output:

6

result:

ok single line: '6'

Test #6:

score: 0
Accepted
time: 2ms
memory: 5304kb

input:

2 3 5

output:

3

result:

ok single line: '3'

Test #7:

score: 0
Accepted
time: 2ms
memory: 3460kb

input:

4 2 8

output:

6

result:

ok single line: '6'

Test #8:

score: 0
Accepted
time: 2ms
memory: 3508kb

input:

5 5 5

output:

2

result:

ok single line: '2'

Test #9:

score: 0
Accepted
time: 2ms
memory: 5328kb

input:

3 8 11

output:

4

result:

ok single line: '4'

Test #10:

score: 0
Accepted
time: 0ms
memory: 5384kb

input:

5 8 16

output:

5

result:

ok single line: '5'

Test #11:

score: 0
Accepted
time: 0ms
memory: 5488kb

input:

9 7 279

output:

70

result:

ok single line: '70'

Test #12:

score: 0
Accepted
time: 2ms
memory: 5372kb

input:

8 3 56

output:

25

result:

ok single line: '25'

Test #13:

score: 0
Accepted
time: 2ms
memory: 5380kb

input:

5 9 46

output:

14

result:

ok single line: '14'

Test #14:

score: 0
Accepted
time: 1ms
memory: 3284kb

input:

8 4 251

output:

93

result:

ok single line: '93'

Test #15:

score: 0
Accepted
time: 2ms
memory: 5316kb

input:

8 7 41

output:

10

result:

ok single line: '10'

Test #16:

score: 0
Accepted
time: 2ms
memory: 5504kb

input:

60 17 360

output:

27

result:

ok single line: '27'

Test #17:

score: 0
Accepted
time: 2ms
memory: 5360kb

input:

16 55 388

output:

31

result:

ok single line: '31'

Test #18:

score: 0
Accepted
time: 2ms
memory: 5328kb

input:

25 38 292

output:

18

result:

ok single line: '18'

Test #19:

score: 0
Accepted
time: 2ms
memory: 5288kb

input:

22 59 177

output:

11

result:

ok single line: '11'

Test #20:

score: 0
Accepted
time: 2ms
memory: 5376kb

input:

4 3 82

output:

50

result:

ok single line: '50'

Test #21:

score: 0
Accepted
time: 77ms
memory: 9532kb

input:

77 18 511543

output:

35070

result:

ok single line: '35070'

Test #22:

score: 0
Accepted
time: 134ms
memory: 13144kb

input:

37 32 987861

output:

57612

result:

ok single line: '57612'

Test #23:

score: 0
Accepted
time: 37ms
memory: 9884kb

input:

29 8 300899

output:

48059

result:

ok single line: '48059'

Test #24:

score: 0
Accepted
time: 80ms
memory: 9952kb

input:

73 83 533839

output:

13745

result:

ok single line: '13745'

Test #25:

score: 0
Accepted
time: 23ms
memory: 7976kb

input:

12 23 181193

output:

23008

result:

ok single line: '23008'

Test #26:

score: 0
Accepted
time: 139ms
memory: 3328kb

input:

2 2 864514

output:

864514

result:

ok single line: '864514'

Test #27:

score: 0
Accepted
time: 25ms
memory: 5968kb

input:

27 7 165249

output:

29765

result:

ok single line: '29765'

Test #28:

score: 0
Accepted
time: 116ms
memory: 13524kb

input:

15 2 751665

output:

429522

result:

ok single line: '429522'

Test #29:

score: 0
Accepted
time: 123ms
memory: 3264kb

input:

2 16 818146

output:

460207

result:

ok single line: '460207'

Test #30:

score: 0
Accepted
time: 83ms
memory: 13688kb

input:

43 88 631366

output:

21860

result:

ok single line: '21860'

Test #31:

score: 0
Accepted
time: 3ms
memory: 5388kb

input:

215 1222 3597

output:

18

result:

ok single line: '18'

Test #32:

score: 0
Accepted
time: 142ms
memory: 10224kb

input:

9619 3375 604892

output:

241

result:

ok single line: '241'

Test #33:

score: 0
Accepted
time: 42ms
memory: 6600kb

input:

861 1924 311511

output:

522

result:

ok single line: '522'

Test #34:

score: 0
Accepted
time: 175ms
memory: 14216kb

input:

9249 3782 866972

output:

322

result:

ok single line: '322'

Test #35:

score: 0
Accepted
time: 133ms
memory: 6360kb

input:

7055 8386 206874

output:

53

result:

ok single line: '53'

Test #36:

score: 0
Accepted
time: 106ms
memory: 5852kb

input:

6273 7732 122377

output:

34

result:

ok single line: '34'

Test #37:

score: 0
Accepted
time: 134ms
memory: 5852kb

input:

8057 7746 89137

output:

22

result:

ok single line: '22'

Test #38:

score: 0
Accepted
time: 156ms
memory: 5668kb

input:

9215 8952 74618

output:

16

result:

ok single line: '16'

Test #39:

score: 0
Accepted
time: 67ms
memory: 6004kb

input:

7246 3709 129579

output:

51

result:

ok single line: '51'

Test #40:

score: 0
Accepted
time: 166ms
memory: 14140kb

input:

4052 6785 831888

output:

327

result:

ok single line: '327'

Test #41:

score: 0
Accepted
time: 17ms
memory: 7664kb

input:

9 2 91067

output:

56916

result:

ok single line: '56916'

Test #42:

score: 0
Accepted
time: 151ms
memory: 14668kb

input:

10 3 913595

output:

406041

result:

ok single line: '406041'

Test #43:

score: 0
Accepted
time: 26ms
memory: 3276kb

input:

2 2 152575

output:

152575

result:

ok single line: '152575'

Test #44:

score: 0
Accepted
time: 152ms
memory: 3508kb

input:

2 2 927771

output:

927771

result:

ok single line: '927771'

Test #45:

score: 0
Accepted
time: 93ms
memory: 13448kb

input:

6 7 637014

output:

200204

result:

ok single line: '200204'

Test #46:

score: 0
Accepted
time: 119ms
memory: 13872kb

input:

5 3 721417

output:

400786

result:

ok single line: '400786'

Test #47:

score: 0
Accepted
time: 25ms
memory: 9916kb

input:

5 9 183079

output:

57538

result:

ok single line: '57538'

Test #48:

score: 0
Accepted
time: 88ms
memory: 11288kb

input:

9 2 579290

output:

362055

result:

ok single line: '362055'

Test #49:

score: 0
Accepted
time: 92ms
memory: 11540kb

input:

3 4 546909

output:

341817

result:

ok single line: '341817'

Test #50:

score: 0
Accepted
time: 153ms
memory: 3488kb

input:

2 2 932611

output:

932611

result:

ok single line: '932611'