Haqiqiy sonlar :: Yechimlar

Masala A

Masala sharti

Kiritilgan haqiqiy songa eng yaqin butun sonni topadigan dastur tuzing.

Kiruvchi ma'lumot

\(-100.000\) dan \(100.000\) gacha oraliqdagi har qanday son

Chiquvchi ma'lumot

Kiritilgan songa eng yaqin butun son.

#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include <itboom.h>

float roundHalfToEven(float f)
{
    const float r = round(f);
    const float d = r - f;

    if ((d != 0.5f) && (d != -0.5f)) {
        return r;
    }

    if (fmod(r, 2.0f) == 0.0f) {
        return r;
    }

    return f - d;
}

int main() {
    float f;
    scanf("%f", &f);
    printf("%d", (int)roundHalfToEven(f));

    return 0;
}

import math
import itboom


def main():
    n = float(input())
    print(round(n))

if __name__ == '__main__':
    main()

Masala B

Masala sharti

1 sonini \(10^n\) soniga bo‘lgandagi qiymatini hisoblaydigan dastur tuzing.

Kiruvchi ma'lumot

\(n\) ning qiymati 0 dan 100 gacha.

Chiquvchi ma'lumot

\(\frac{1}{10^n}\) ifodaning qiymati

#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include <itboom.h>

int main() {
    int n;
    scanf("%d", &n);
    if (n == 0) {
        printf("1");
        return 0;
    }
    
    printf("0.");
    for(int i = 0; i < n - 1; i++) {
        printf("0");
    }
    
    printf("1");

    return 0;
}

import math
import itboom

def main():
    n = int(input())
    if n == 0:
        print(1)
    else:
        print("0." + "0" * (n - 1) + "1")

if __name__ == '__main__':
    main()

Masala C

Masala sharti

Kiritilgan son haqiqiy son ekanligini tekshiradigan dastur tuzing.

Kiruvchi ma'lumot

Birinchi qatorda belgilar soni (1 dan 100 gacha), ikkinchi qatorda raqamlar va nuqtadan iborat, uzunligi berilgan belgilar soniga teng matn

Chiquvchi ma'lumot

Agar haqiqiy son bo’lsa YES, aks holda NO so’zi

#include <stdio.h>
#include <itboom.h>

int main() {
    int n, k = 0, m = 0;
    scanf("%d\n", &n);
    
    for(int i = 0; i < n; i++) {
        char c;
        scanf("%c", &c);
        if (c == '.') {
            k ++;
        } else {
            m ++;
        }
    }

    if (k == 1 && m > 0) {
        printf("YES");
    } else {
        printf("NO");
    }
    
    return 0;
}

import math
import itboom

def main():
    # raqamlar soni bizga kerak emas
    input()
    
    n = input()
    if len(n) > 1 and n.count(".") == 1:
        print("YES")
    else:
        print("NO")

if __name__ == '__main__':
    main()

Masala D

Masala sharti

Kiritilgan haqiqiy soning butun va kasr qismini alohida ajratib, qatorma-qator ekranga chiqaradigan dastur tuzing.

Kiruvchi ma'lumot

\(-100.000\) dan \(100.000\) gacha oraliqdagi har qanday son.

Chiquvchi ma'lumot

Sonning butun va kasr qismi

#include <stdio.h>
#include <itboom.h>

int main() {
    double f, a, b;
    scanf("%lf", &f);
    
    a = modf(f, &b);
    
    if (b == 0 && a < 0) {
        //Shartda ishorasi bir xil bo'lsin deyilgan
        //Hatto 0 bo'lsa ham
        printf("-");
    }
    
    printf("%d\n%g", (int)b, a);
    
    if (a == 0.0f) {
        //Shartda 0 emas, 0.0 chiqarish kerak
        //C da %g 0.0 da faqat 0 chiqaradi
        printf(".0");
    }

    return 0;
}

import math
import itboom

def main():
    n = str(float(input())) # 0 larni olib tashlaymiz
    if "." not in n:
        n += ".0"
    
    a, b = n.split(".")
    
    print(a)
    if a.startswith("-"):
        print("-", end="")
    
    print("0." + b)

if __name__ == '__main__':
    main()

Masala E

Ketma-ket ikkita belgini kiritib olamiz va teskari tartibda ekranga chiqaramiz

Masala sharti

Kiritilgan ikki xonali sonni teskarisini chiqaradigan dastur tuzing.

Kiruvchi ma'lumot

Ikki xonali son

Chiquvchi ma'lumot

Kiritilgan sonning teskarisi

,>,.<.