Submission #1243525

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Source Code Expand

#include "bits/stdc++.h"
#include <regex>

using namespace std;

#ifndef _DEBUG
#define main_ main
#endif
#define FOR(i,s,e) for (int i = int(s); i != int(e); i++)
#define INF (INT_MAX/2)
#define EPS (1.0e-8)
#define LINF (LONG_MAX/2)

typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;

template <typename T>
using keyVal = pair<string, T>;
template<typename T>
bool val_greater(const keyVal<T>& left, const keyVal<T>& right) {
	return left.second > right.second;
}

int main_() {
	int N, S, T;
	cin >> N >> S >> T;
	int W;
	cin >> W;
	vi A(N+1);
	A[1] = 0;
	FOR(i,2,N+1) {
		cin >> A[i];
	}

	int cnt = 0;
	FOR(i, 1, N+1) {
		W += A[i];
		if (S <= W && W <= T) cnt++;
	}

	cout << cnt << endl;
	return 0;
}

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