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round function in c++

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Crazy Crayfish answered on May 24, 2020 Popularity 1/10 Helpfulness 1/10

answer round function in c++

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round function in c++

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cout<<round(25.5)<<endl;

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Tags: c++ function

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Contributed on Feb 07 2022

Crazy Crayfish

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nearest integer rounding in c++

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 cout << "Nearest value of x :" << round(x) << "\n";

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Contributed on May 24 2020

Troubled Toucan

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round c++

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value   round   floor   ceil    trunc
-----   -----   -----   ----    -----
2.3     2.0     2.0     3.0     2.0
3.8     4.0     3.0     4.0     3.0
5.5     6.0     5.0     6.0     5.0
-2.3    -2.0    -3.0    -2.0    -2.0
-3.8    -4.0    -4.0    -3.0    -3.0
-5.5    -6.0    -6.0    -5.0    -5.0

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Source: www.cplusplus.com

Tags: c++

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Contributed on Feb 02 2022

Cute Caterpillar

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round c++

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-1

#include<bits/stdc++.h>

int main() {
	using namespace std;
	ios_base::sync_with_stdio(false), cin.tie(nullptr);

	int T; cin >> T;
	for (int case_num = 1; case_num <= T; case_num ++) {

		int64_t L, R; cin >> L >> R; R++;
		bool parity = 0;
		int64_t coeff = 1;
		int64_t ans = 0;
		while (L < R) {
			assert(1 <= L && L < R);
			auto is_good = [&](int64_t v) {
				assert(v > 0);
				bool d = v % 2;
				while (v > 0) {
					if (v % 2 != d) return false;
					d = !d;
					v /= 10;
				}
				return d == 0;
			};
			while (L < R && L % 10 != 0) {
				if (is_good(L)) {
					ans += coeff;
				}
				L++;
			}
			while (L < R && R % 10 != 0) {
				--R;
				if (is_good(R)) {
					ans += coeff;
				}
			}

			if (L == R) break;
			assert(L % 10 == 0 && R % 10 == 0);
			assert(L >= 10);

			L /= 10;
sorry for the error

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Contributed on Jun 05 2021

Frightened Ferret

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round function in c++

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