VhodnoyControl/ВходнойКонтрольПроваленкоЛН/dhodnoycontrol.c

#include <stdio.h>
#include <locale.h>
#include <string.h>
#include <math.h>



void vvod(int task, float* arguments) {
    if (task == 1) {
        printf_s("Ââåäèòå êîýôôèöèåíòû a, b è c: ");
        while (scanf_s("%f %f %f", &arguments[0], &arguments[1], &arguments[2]) != 3) {
            printf("Îøèáêà ââîäà. Ïîæàëóéñòà, ââåäèòå òðè ÷èñëà: ");
            while (getchar() != '\n'); 
        }
    }
    else if (task == 2) {
        printf_s("Ââåäèòå êîýôôèöèåíòû ñèñòåìû (a1, b1, c1, a2, b2, c2): ");
        while (scanf_s("%f %f %f %f %f %f", &arguments[0], &arguments[1], &arguments[2],
            &arguments[3], &arguments[4], &arguments[5]) != 6) {
            printf_s("Îøèáêà ââîäà. Ïîæàëóéñòà, ââåäèòå øåñòü ÷èñåë: ");
            while (getchar() != '\n'); 
        }
    }
    else if (task == 3) {
        printf_s("Ââåäèòå ÷èñëî äëÿ âû÷èñëåíèÿ ôàêòîðèàëà: ");
        while (scanf_s("%f", &arguments[0]) != 1 || arguments[0] < 0 || arguments[0] != (float)arguments[0]) {
            printf_s("Îøèáêà ââîäà. Ïîæàëóéñòà, ââåäèòå íåîòðèöàòåëüíîå öåëîå ÷èñëî: ");
            while (getchar() != '\n'); 
        }
    }
}

void vivod(int task, float* x, int numRoots) {
    if (task == 1) {
        if (numRoots == 1) {
            printf_s("Êîðåíü óðàâíåíèÿ: %.2f\n", x[0]);
        }
        else if (numRoots == 2) {
            printf_s("Êîðíè óðàâíåíèÿ: %.2f\n%.2f\n", x[0], x[1]);
        }
        else if (numRoots == 3)
        {
            printf_s("Àðãóìåíòû íå ìîãóò áûòü îòðèöàòåëüíûìè.\n");
        }
        else {
            printf_s("Íåò äåéñòâèòåëüíûõ êîðíåé.\n");
        }
    }
    else if (task == 2) {
        if (numRoots == 0)
        {
            printf_s("Ðåøåíèå ñèñòåìû: x = %.2f, y = %.2f\n", x[0], x[1]);
        }
        else
        {
            printf_s("Ñèñòåìà íå èìååò åäèíñòâåííîãî ðåøåíèÿ.\n");
        }
    }
    else if (task == 3) {
        printf_s("Ôàêòîðèàë ÷èñëà %.2f ðàâåí: %.20f\n", x[0], x[1]);
    }
}

int Task1(float* arguments, float* x) {
    float a = arguments[0];
    float b = arguments[1];
    float c = arguments[2];
    float D = b * b - 4 * a * c;

    if (a == 0 || b == 0 || c == 0)
    {
        return 3;
    }

    else if (D > 0) {
        x[0] = (-b + sqrt(D)) / (2 * a);
        x[1] = (-b - sqrt(D)) / (2 * a);
        return 2; // Äâà êîðíÿ
    }
    else if (D == 0) {
        x[0] = -b / (2 * a);
        return 1; // Îäèí êîðåíü
    }
    else {
        return 0; // Íåò äåéñòâèòåëüíûõ êîðíåé
    }
}

int Task2(float* arguments, float* x) {
    float a1 = arguments[0], b1 = arguments[1], c1 = arguments[2];
    float a2 = arguments[3], b2 = arguments[4], c2 = arguments[5];

    float D = a1 * b2 - a2 * b1;

    if (D != 0) {
        // Ðåøåíèå ñèñòåìû
        x[0] = (c1 * b2 - c2 * b1) / D; // x
        x[1] = (a1 * c2 - a2 * c1) / D; // y
        return 0;
    }
    else {      
        return 1;
    }
}

double Task3(float n) {
    if (n == 0 || n == 1) {
        return 1;
    }
  double result = 1;
    for (int i = 2; i <= n; i++) {
        result *= i;
    }
    return result;
}

int main() {
    float arguments[6]; 
    float roots[2]; // Ìàññèâ äëÿ õðàíåíèÿ êîðíåé
    int task;
    setlocale(LC_ALL, "Russian");

    printf_s("Ââåäèòå íîìåð çàäàíèÿ (1 - êâàäðàòíîå óðàâíåíèå, 2 - ñèñòåìà óðàâíåíèé, 3 - ôàêòîðèàë): ");
    scanf_s("%d", &task);

    vvod(task, arguments);

    if (task == 1) {
        int numRoots = Task1(arguments, roots);
        vivod(task, roots, numRoots);
    }
    else if (task == 2) {
        Task2(arguments, roots);
        int numRoots = Task2(arguments, roots);
        vivod(task, roots, numRoots);
    }
    else if (task == 3) {
        int n = (int)arguments[0];
        roots[0] = n; // Ñîõðàíÿåì ÷èñëî äëÿ âûâîäà
        roots[1] = Task3(n); // Âû÷èñëÿåì ôàêòîðèàë
        vivod(task, roots, 0); 
    }

    return 0;
}