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42 lines
860 B
42 lines
860 B
#include <bits/stdc++.h>
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using namespace std;
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typedef long long LL;
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const int p = 1000003;
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int qmi(int a, int k) {
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int res = 1;
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while (k) {
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if (k & 1) res = (LL)res * a % p;
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a = (LL)a * a % p;
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k >>= 1;
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}
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return res;
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}
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int C(int a, int b) {
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if (a < b) return 0;
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int down = 1, up = 1;
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for (int i = a, j = 1; j <= b; i--, j++) {
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up = (LL)up * i % p;
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down = (LL)down * j % p;
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}
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return (LL)up * qmi(down, p - 2) % p;
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}
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int Lucas(int a, int b) {
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if (a < p && b < p) return C(a, b);
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return (LL)Lucas(a / p, b / p) * C(a % p, b % p) % p;
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}
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int main() {
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int T;
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cin >> T;
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while (T--) {
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int n, l, r;
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cin >> n >> l >> r;
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cout << (Lucas(r - l + n + 1, r - l + 1) + p - 1) % p << endl;
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}
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return 0;
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} |