27 lines
517 B
C++
27 lines
517 B
C++
// Coin Combinations I
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#include<bits/stdc++.h>
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using namespace std;
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using ll = long long;
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const int MOD = 1e9 + 7;
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ll dp[(int)1e6 + 1];
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int main() {
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int n; int x; cin >> n >> x;
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dp[0] = 1;
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vector<int> in(n);
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for (int i = 0; i < n; i++) cin >> in[i];
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for (int i = 0; i <= x; ++i) {
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for (int j = 0; j < n; j++) {
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if (in[j] <= i) {
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dp[i] += dp[i - in[j]];
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dp[i] %= MOD;
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}
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}
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}
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cout << dp[x] << endl;
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return 0;
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}
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