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QOJ
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 |
---|---|---|---|---|---|---|---|---|---|
#721111 | #8340. 3 Sum | AnotherDayofSun# | TL | 250ms | 81720kb | C++14 | 1.5kb | 2024-11-07 15:17:01 | 2024-11-07 15:17:03 |
Judging History
answer
#include<bits/stdc++.h>
#pragma GCC optimize(2)
#pragma GCC optimize(3)
#pragma GCC optimize("Ofast")
#define int long long
using namespace std;
int n,k,a[503][20003],l,c[503][13],ans;
int p[13]={(int)1e9+7,(int)1e9+9,998244353,19260817},e[13],t=4;
char cc[20003];
signed main(){
scanf("%lld %lld",&n,&k);
for(int i=1;i<=n;++i){
scanf("%s",cc);
l=strlen(cc);
for(int j=0;j<l;++j){
a[i][j%k]+=cc[j]-'0';
}
for(int j=0;j<k;++j){
a[i][(j+1)%k]+=a[i][j]/10;
a[i][j]%=10;
}
for(int j=0;j<k;++j){
a[i][(j+1)%k]+=a[i][j]/10;
a[i][j]%=10;
}
}
for(int i=0;i<t;++i){
e[i]=1;
for(int j=0;j<k;++j){
e[i]=e[i]*10%p[i];
}
--e[i];
for(int j=1;j<=n;++j){
c[j][i]=0;
for(int l=0;l<k;++l){
c[j][i]=(c[j][i]*10+a[j][l])%p[i];
}
}
}
for(int i=1;i<=n;++i){
for(int j=1;j<=i;++j){
for(int l=1;l<=j;++l){
bool b=1;
for(int o=0;o<t;++o){
if((c[i][o]+c[j][o]+c[l][o])%p[o]!=0){
b=0;
break;
}
}
ans+=b;
}
}
}
for(int i=1;i<=n;++i){
for(int j=1;j<=i;++j){
for(int l=1;l<=j;++l){
bool b=1;
for(int o=0;o<t;++o){
if((c[i][o]+c[j][o]+c[l][o])%p[o]!=e[o]){
b=0;
break;
}
}
ans+=b;
}
}
}
for(int i=1;i<=n;++i){
for(int j=1;j<=i;++j){
for(int l=1;l<=j;++l){
bool b=1;
for(int o=0;o<t;++o){
if((c[i][o]+c[j][o]+c[l][o])%p[o]!=e[o]*2%p[o]){
b=0;
break;
}
}
ans+=b;
}
}
}
cout<<ans;
}
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 3804kb
input:
4 1 0 1 10 17
output:
3
result:
ok 1 number(s): "3"
Test #2:
score: 0
Accepted
time: 250ms
memory: 81720kb
input:
500 859 7118711592236878297922359501613604144948355616986970837340677671376753603836852811886591300370143151943368529129749813118476151865844255212534355441611481420938483178075143062691345257288242460282715389758789648541099090735875617822348551942134616963557723055980260082230902505269975518146286...
output:
0
result:
ok 1 number(s): "0"
Test #3:
score: -100
Time Limit Exceeded
input:
500 17336 11871159223687829792235950161360414494835561698697083734067767137675360383685281188659130037014315194336852912974981311847615186584425521253435544161148142093848317807514306269134525728824246028271538975878964854109909073587561782234855194213461696355772305598026008223090250526997551814628...
output:
0