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206.cpp
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103 lines (93 loc) · 2 KB
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#include <iostream>
#include <sstream>
#include <algorithm>
#include <iterator>
#include <vector>
#include <deque>
#include <set>
#include <cmath>
using namespace std;
#define REP(i,n) for(int i=0;i<(n);++i)
#define FOR(i,a,b) for(int i=(a);i<=(b);++i)
#define RFOR(i,a,b) for(int i=(a);i>=(b);--i)
typedef long long LL;
vector<string> split( const string& s, const string& delim =" " ) {
vector<string> res;
string t;
for ( int i = 0 ; i != s.size() ; i++ ) {
if ( delim.find( s[i] ) != string::npos ) {
if ( !t.empty() ) {
res.push_back( t );
t = "";
}
} else {
t += s[i];
}
}
if (!t.empty() ) {
res.push_back(t);
}
return res;
}
vector<int> splitInt( const string& s, const string& delim =" " ) {
vector<string> tok = split( s, delim );
vector<int> res;
for ( int i = 0 ; i != tok.size(); i++ )
res.push_back( atoi( tok[i].c_str() ) );
return res;
}
LL gcd(LL a,LL b){
return b?gcd(b,a%b):a;
}
inline LL lcm(LL a,LL b){
return a/gcd(a,b)*b;
}
int s2i(string s) {
stringstream ss;
ss << s;
int res;
ss >> res;
return res;
}
string i2s(LL n) {
stringstream ss;
ss << n;
string res;
ss >> res;
return res;
}
vector<int> mm;
void run() {
FOR(i,1010,1389) {
REP(j,mm.size()) {
LL t = i * 100000 + mm[j];
LL q = t;
t *= t;
string s = i2s(t);
bool flag = true;
for (int i = 0; i < s.length(); i += 2) {
if (s[i] != '1' + (i >> 1)) {
flag = false;
break;
}
}
if (flag) {
cout << q << "0" << endl;
cout << s << "00" << endl;
return;
}
}
}
}
int main() {
FOR(i,1,99999) {
LL t = i + 100000;
t *= t;
string s = i2s(t);
int len = s.length();
if (s[len - 1] == '9' && s[len - 3] == '8' && s[len - 5] == '7') {
mm.push_back(i);
}
}
run();
}