NOI.AC

ID	题目	提交者	结果	用时	内存	语言	文件大小	提交时间	测评时间
#190605	#3382. 切纸带	ddh123	100	35ms	16776kb	C++	532b	2023-10-06 14:36:19	2023-10-06 18:34:30

answer

#include<bits/stdc++.h>
using namespace std;
#define int long long
int n,k,a[1000005],dp[1000005],ans;
int read(){
	int x=0,f=1;
	char ch=getchar();
	while(ch<'0'||ch>'9'){
		if(ch=='-')f=-1;
		ch=getchar();
	}
	while(ch>='0'&&ch<='9')
		x=(x<<1)+(x<<3)+(ch^48),ch=getchar();
	return x*f;
}
signed main(){
	n=read(),k=read();
	for(int i=1,j=0;i<=n;i++){
		a[i]=read(),a[i]+=a[i-1];
		while(j+1<i&&a[i]-a[j]>k)j++;
		if(a[i]-a[j]==k)dp[i]=dp[j]+1;
		ans=max(ans,dp[i]);
	}
	printf("%lld",ans);
	return 0;
}

源文件, 语言: C++

详细

小提示：点击横条可展开更详细的信息

Test #1:

score: 10

Accepted

time: 0ms

memory: 1156kb

input:

10 8
7 6 1 1 1 2 2 1 1 1

output:

result:

ok 1 number(s): "2"

Test #2:

score: 10

Accepted

time: 1ms

memory: 1160kb

input:

20 15
15 15 15 6 5 4 3 1 2 1 4 3 1 2 1 1 3 2 5 1

output:

result:

ok 1 number(s): "6"

Test #3:

score: 10

Accepted

time: 0ms

memory: 1160kb

input:

50 150
30 83 136 11 2 94 137 127 111 27 150 150 150 150 150 47 150 145 67 150 150 59 143 142 150 18 ...

output:

result:

ok 1 number(s): "5"

Test #4:

score: 10

Accepted

time: 0ms

memory: 1156kb

input:

100 10000
2397 9666 164 4643 8586 5876 4272 2648 1874 1206 6920 1732 107 35 778 428 6920 262 888 582...

output:

result:

ok 1 number(s): "8"

Test #5:

score: 10

Accepted

time: 0ms

memory: 1168kb

input:

500 278529
33329 243449 856 45 557 153 52 68 9 11 15965 25498 110413 69087 26846 16166 3236 4561 127...

output:

result:

ok 1 number(s): "12"

Test #6:

score: 10

Accepted

time: 0ms

memory: 1232kb

input:

5000 1024
369 299 338 137 12 186 10 180 97 117 148 16 8 169 31 44 17 111 24 7 42 12 45 276 67 6 1 2 ...

output:

result:

ok 1 number(s): "26"

Test #7:

score: 10

Accepted

time: 0ms

memory: 1932kb

input:

50000 2
1 1 1 2 2 1 1 1 2 1 2 2 2 1 1 1 1 1 1 2 1 1 1 1 1 2 2 2 1 1 1 1 2 2 1 2 2 1 1 1 1 2 1 1 1 1 ...

output:

result:

ok 1 number(s): "1435"

Test #8:

score: 10

Accepted

time: 4ms

memory: 2716kb

input:

100000 2
2 2 1 1 2 2 1 1 1 2 1 1 2 1 1 2 2 2 2 2 2 2 2 2 1 1 1 1 2 1 1 2 2 1 2 2 2 2 1 1 2 1 1 2 2 2...

output:

result:

ok 1 number(s): "1065"

Test #9:

score: 10

Accepted

time: 9ms

memory: 2720kb

input:

100000 594914243
32593384 70791539 466102281 5146792 10441404 6860910 391592 109128 1123315 1345154 ...

output:

result:

ok 1 number(s): "121"

Test #10:

score: 10

Accepted

time: 21ms

memory: 16776kb

input:

1000000 1000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1...

output:

result:

ok 1 number(s): "850"