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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#590145#8340. 3 SumDBsoleilAC ✓122ms4132kbC++201.2kb2024-09-25 22:00:132024-10-13 18:56:12

Judging History

你现在查看的是最新测评结果

  • [2024-10-13 18:56:12]
  • 管理员手动重测本题所有得分≥97分的提交记录
  • 测评结果:AC
  • 用时:122ms
  • 内存:4132kb
  • [2024-09-25 22:00:13]
  • 评测
  • 测评结果:100
  • 用时:120ms
  • 内存:4020kb
  • [2024-09-25 22:00:13]
  • 提交

answer

#include<bits/stdc++.h>
#define pb push_back
using namespace std;
typedef long long ll;

const int N=505,M=20005;
const ll MOD=1e9+9;
int n,k,ans;
ll a[N],b[M],mod;
char s[M];

ll getll()
{
    scanf("%s",s);
    ll res=0,len=strlen(s),jd=0;
    for(int i=0;i<len;i++) b[i]=s[i]-'0';
    reverse(b,b+len);
    while(len>k)
    {
        for(int i=k;i<len;i++) b[i%k]+=b[i],b[i]=0;
        for(int i=0;i<len;i++) b[i+1]+=b[i]/10,b[i]%=10;
        while(len>0&&b[len-1]==0) len--;
    }
    for(int i=len-1;i>=0;i--) res=(res*10+b[i])%MOD;
    if(res==mod) res=0;
    //assert(k>1||len==1);
    //cerr<<res<<endl;
    return res;
}

bool check(ll x)
{
    return (x==mod||x==mod*2%MOD||x==0);
}

void input()
{
    scanf("%d%d",&n,&k),mod=1;
    for(int i=1;i<=k;i++) mod=mod*10%MOD;
    mod=(mod-1+MOD)%MOD;
    for(int i=1;i<=n;i++) a[i]=getll();
    //for(int i=1;i<=n;i++) cerr<<' '<<a[i];
    //cerr<<endl;
}

void solve()
{
    input();
    for(int i=1;i<=n;i++) for(int j=i;j<=n;j++) for(int k=j;k<=n;k++)
    {
        ll sum=(a[i]+a[j]+a[k])%MOD;
        if(check(sum)) ans++;
    }
    printf("%d\n",ans);
}

int main()
{
    solve();
}

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: 0ms
memory: 3776kb

input:

4 1
0
1
10
17

output:

3

result:

ok 1 number(s): "3"

Test #2:

score: 0
Accepted
time: 32ms
memory: 3828kb

input:

500 859
7118711592236878297922359501613604144948355616986970837340677671376753603836852811886591300370143151943368529129749813118476151865844255212534355441611481420938483178075143062691345257288242460282715389758789648541099090735875617822348551942134616963557723055980260082230902505269975518146286...

output:

0

result:

ok 1 number(s): "0"

Test #3:

score: 0
Accepted
time: 113ms
memory: 3980kb

input:

500 17336
11871159223687829792235950161360414494835561698697083734067767137675360383685281188659130037014315194336852912974981311847615186584425521253435544161148142093848317807514306269134525728824246028271538975878964854109909073587561782234855194213461696355772305598026008223090250526997551814628...

output:

0

result:

ok 1 number(s): "0"

Test #4:

score: 0
Accepted
time: 122ms
memory: 4012kb

input:

500 1
751324443898124078584847834484321089092662321556147445230263526014359393841194947303407593948729802551881289193716611867931891257925091769456350249725997883453296895094445731130479434019358742162771547784250401546380268386074363779242500860317042151185119666027858022664683818314351285215150806...

output:

2327631

result:

ok 1 number(s): "2327631"

Test #5:

score: 0
Accepted
time: 105ms
memory: 4060kb

input:

500 2
408542968136435277974575411503179002415404345446801430469044749372949272333801248935236224652806667129749035002588943020176263162139056819871274824302889304493205266143688886696157147111754418731401856424401766968832165255416237731963027205324149660112574729610391396555581935236134531799950318...

output:

212002

result:

ok 1 number(s): "212002"

Test #6:

score: 0
Accepted
time: 107ms
memory: 4080kb

input:

500 11500
75411775796562109942642493394321873284995260953010112281856775261847503626737348402159485133662757032091519863427156582689971229143089317472838196453888261138079171290535429921921548971897026706656838415620603757605079012541561774699628665865662183868374645956694140356716037674688084770628...

output:

7675

result:

ok 1 number(s): "7675"

Test #7:

score: 0
Accepted
time: 112ms
memory: 4132kb

input:

500 11500
85355036663164764459816544518601485185320972076300982726542821424439713703229669576802138231401047471351087455159512255765325323540671792953715169122669767368905391325060775725733157611188832204902997772518104188947349204726490597030311894441123834099315122116302203972018409854605418988681...

output:

1070

result:

ok 1 number(s): "1070"

Test #8:

score: 0
Accepted
time: 1ms
memory: 3876kb

input:

1 11500
9999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999...

output:

1

result:

ok 1 number(s): "1"

Extra Test:

score: 0
Extra Test Passed