Submission #1870998

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Source Code Expand

#include <algorithm>
#include <iostream>
#include <cstring>
#include <cstdio>
#include <cmath>
using namespace std;

typedef long long s64;

const int MaxN = 200000;
const int MaxM = MaxN / 2;
const int NLet = 26;

int n;
char s[MaxN + 2];

int sum[MaxM + 1][NLet];

int fail[MaxM + 1];

int cir_l = 0;

inline void build_fail()
{
	int k = 0;
	for (int i = 2; i <= n; ++i)
	{
		while (k && s[k + 1] != s[i])
			k = fail[k];
		fail[i] = (k += s[k + 1] == s[i]);
	}
}

s64 solve(s64 l, int c)
{
	s64 res = 0;
	while (l > n)
	{
		s64 nl = cir_l, nr = n;
		s64 sl = sum[cir_l][c], sr = sum[n][c];

		while (l >= nl + nr)
		{
			nr += nl, nl = nr - nl;
			sr += sl, sl = sr - sl;
		}

		l -= nr, res += sr;
	}

	return res + sum[l][c];
}

int main()
{
	scanf("%s", s + 1);
	n = strlen(s + 1) / 2;
	s[n + 1] = '\0';

	for (int i = 1; i <= n; ++i)
	{
		for (int c = 0; c < NLet; ++c)
			sum[i][c] = sum[i - 1][c];
		++sum[i][s[i] - 'a'];
	}

	build_fail();

	cir_l = n - fail[n];

	s64 l, r;
	cin >> l >> r;

	for (int c = 0; c < NLet; ++c)
		cout << solve(r, c) - solve(l - 1, c) << ' ';
	cout << endl;

	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:56:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s", s + 1);
                    ^

Judge Result