USACO Silver 2016 January - Subsequences Summing to Sevens

Official Analysis (Java)

Video Solution

Note: The video solution might not be the same as other solutions. Code in C++.

Implementation

Time Complexity: $\mathcal{O}(N)$

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#include <algorithm>
#include <iostream>
#include <vector>

using namespace std;

const int MOD = 7;

int main() {
	freopen("div7.in", "r", stdin);