Submission #2260

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
2260	2013-07-20 17:46:07	kriii	생일수 II (GA4_birthday2)	C++98	100 / 100	62 ms	13232 KiB

birthday2

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#include <iostream>
#include <string>
using namespace std;
const long long mod = 19980305;
long long linear[200020];
long long scalar[200020];
long long sum[200020];
long long ten[200020],cnt[200020];
long long three[200020];
long long eight[200020];
void add(long long &a, long long p){a = (a + p) % mod;}
void mul(long long &a, long long p){a = (a * p) % mod;}
long long get(string s)
{
  int i,l=s.length()-1;
  long long res = sum[l];
  long long in = 0, p, c;
  for (i=0;i<s.length();i++,l--){
    p = ten[l]; c = (cnt[l] + mod - 1) % mod;
    if (s[i] == '3'){
      in += 3 * p;
    }
    if (s[i] == '5'){
      add(res,(in+3*p)*(in+3*p)%mod*c%mod);
      add(res,(linear[l]*2+mod*2-three[l]-eight[l])%mod*(in+3*p)%mod);
      add(res,scalar[l]);
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 20 / 20
• Subtask 4: 25 / 25
• Subtask 5: 30 / 30