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cses/CSES - CSES Problem Set/Dynamic_Programming/Coin_Combinations_II.cpp
2024-06-15 11:50:15 +02:00

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414 B
C++

// Coin Combinations II
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
const int MOD = 1e9 + 7;
ll dp[(int)1e6 + 1];
int main() {
dp[0] = 1;
int n, x;
cin >> n >> x;
for (int i{}; i < n; i++) {
int c; cin >> c;
for (int j = c; j <= x; j++) {
dp[j] += dp[j-c];
dp[j] %= MOD;
}
}
cout << dp[x] << endl;
return 0;
}