1018: Give me the answer
1018: Give me the answer
时间限制: 1 Sec 内存限制: 32 MB提交: 55 解决: 15
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题目描述
Farmer John commanded his cows to search for different sets of numbers that sum to a given number.
The cows use only numbers that are an integer power of 2. Here are the possible sets of numbers that
sum to 7:
1) 1+1+1+1+1+1+1
2) 1+1+1+1+1+2
3) 1+1+1+2+2
4) 1+1+1+4
5) 1+2+2+2
6) 1+2+4
Help FJ count all possible representations for a given integer N (1 <= N <= 1 ,000,000)
输入
The first line of the input contains the number of test cases in the file. And t he first line of each case
contains one integer numbers n
输出
For each test case, output a line with the ans % 1000000000.
样例输入
1
7
样例输出
6
#include<stdio.h> #define MAX 1000010 int a[MAX]; int main() { int n, m, i; a[1] = 1; a[2] = 2; for(i = 3; i <= MAX; ++i) { if(i & 1) a[i] = a[i - 1] % 1000000000; else a[i] = (a[i - 1] + a[i / 2]) % 1000000000; } scanf("%d", &n); while(n--) { scanf("%d", &m); printf("%d\n", a[m]); } return 0; }