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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#590081#8340. 3 SumDBsoleilWA 84ms3960kbC++20962b2024-09-25 21:26:262024-09-25 21:26:26

Judging History

你现在查看的是最新测评结果

  • [2024-09-25 21:26:26]
  • 评测
  • 测评结果:WA
  • 用时:84ms
  • 内存:3960kb
  • [2024-09-25 21:26:26]
  • 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+7;
int n,k,ans,mod;
ll a[N];
char s[M];

ll getll()
{
    scanf("%s",s+1);
    ll res=0,len=strlen(s+1);
    for(int i=len;i>=1;i-=k)
    {
        ll nw=0;
        for(int j=max(i-k+1,1);j<=i;j++) nw=(nw*10+s[j]-'0')%MOD;
        res+=nw;
    }
    return res%MOD;
}

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();
}

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 3960kb

input:

4 1
0
1
10
17

output:

3

result:

ok 1 number(s): "3"

Test #2:

score: 0
Accepted
time: 34ms
memory: 3784kb

input:

500 859
7118711592236878297922359501613604144948355616986970837340677671376753603836852811886591300370143151943368529129749813118476151865844255212534355441611481420938483178075143062691345257288242460282715389758789648541099090735875617822348551942134616963557723055980260082230902505269975518146286...

output:

0

result:

ok 1 number(s): "0"

Test #3:

score: 0
Accepted
time: 84ms
memory: 3864kb

input:

500 17336
11871159223687829792235950161360414494835561698697083734067767137675360383685281188659130037014315194336852912974981311847615186584425521253435544161148142093848317807514306269134525728824246028271538975878964854109909073587561782234855194213461696355772305598026008223090250526997551814628...

output:

0

result:

ok 1 number(s): "0"

Test #4:

score: -100
Wrong Answer
time: 68ms
memory: 3852kb

input:

500 1
751324443898124078584847834484321089092662321556147445230263526014359393841194947303407593948729802551881289193716611867931891257925091769456350249725997883453296895094445731130479434019358742162771547784250401546380268386074363779242500860317042151185119666027858022664683818314351285215150806...

output:

0

result:

wrong answer 1st numbers differ - expected: '2327631', found: '0'