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RSS订阅原创 project euler 21~25
Problem 21 Amicable numbers#include <iostream>#include <cstdio>#include <cmath>using namespace std;const int N = 10000 + 10;int work(int n) { int factorSum[N]; for(...
2019-12-08 20:56:57
171
原创 project euler 16~20
Problem 16 Power digit sum思路高精度乘法，这里用了万进制数，可以少一些循环#include <iostream>#include <cstdio>using namespace std;const int N = 1000 + 10;int work(int x, int n) { int dig[N]; in...
2019-12-05 21:56:08
268
原创 project euler 11~15
Problem 11#include <iostream>#include <cstdio>using namespace std;const int N = 20 + 10;int work(int n) { int arr[N][N]; for(int i = 0; i < n; ++i) { for(int j ...
2019-12-05 21:27:40
178
原创 project euler 6~10
Problem 6 Sum square difference#include <iostream>#include <cstdio>using namespace std;int work(int n) { int t1 = 0, t2 = 0; for(int i = 1; i <= n; i++) { t1 += i...
2019-12-03 22:40:20
144
原创 project euler 1~5
Problem 1 Multiples of 3 and 5#include <iostream>#include <cstdio>using namespace std;int work(int n) { int ans = 0; for(int i = 0; i < n; i++) { ans += (i%3 == 0...
2019-12-03 22:17:24
143
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