Lab 1

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

int main()
{
    float xmin, xmax, x, xch, step, Y;

    int chs, N=1, i, dot, x_prov=0, chs_prov, color, skin, bg, ch_skin, n, txt_color_chs, prov=0, N_next;

    printf(".:: Table builder v1.0 ::.\n\n");

    do {
    prov++;
    if (prov>1) printf("Only digits! And only 1 or 2! \n");
    printf("Do you want to select color skin?(1-yes, 2-no): ");
    fflush(stdin);
    }
    while (!scanf("%d", &color) || color != 1 && color != 2);
    prov=0;

    if (color==1)
        {
        do {
        prov++;
        if (prov>1) printf("Only digits! And only from 1 to 5! \n");
        printf("\nDo you want make skin yourself(enter 1) or select done skin(enter 2)?\nEnter variant number: ");
        fflush(stdin);
        }
        while (!scanf("%d", &ch_skin) || ch_skin != 1 && ch_skin != 2 && ch_skin != 3 && ch_skin != 4 && ch_skin != 5);
        prov=0;
        if (ch_skin==1) {
                printf("\nWellcome to Color Wizard!\n\nFirst step. Select background color:\n1.Black\n2.White\n3.Blue\n4.Bright Grey\n5.Bright Blue\nYour choice: ");
                scanf("%d", &bg);
                switch (bg)
                {
                case 1: system("color 07"); n=1; break;
                case 2: system("color FF"); n=2; break;
                case 3: system("color 17"); n=3; break;
                case 4: system("color 7F"); n=4; break;
                case 5: system("color BF"); n=5; break;
                default: system("color 07"); n=6; printf("Uncorrect answer. Default seted BLACK color"); break;
            }
                printf("\nSecond step. Select text color:\n1.Black\n2.Green\n3.Red\nYour choice: ");
                scanf("%d", &txt_color_chs);

                    if (n==1)
                    {
                        switch (txt_color_chs)
                        {
                        case 1: system("color 00"); break;
                        case 2: system("color 0A"); break;
                        case 3: system("color 0C"); break;
                        default: system("color 07"); printf("Uncorrect answer. Ddefault seted WHITE color\n"); break;
                        }
                    }
                    else {
                        if (n==2)
                        {
                            switch (txt_color_chs)
                        {
                        case 1: system("color F0"); break;
                        case 2: system("color FA"); break;
                        case 3: system("color FC"); break;
                        default: system("color F7"); printf("Uncorrect answer. Ddefault seted WHITE color"); break;
                        }
                        }
                        else {
                            if (n==3)
                            {
                                switch (txt_color_chs)
                        {
                        case 1: system("color 10"); break;
                        case 2: system("color 1A"); break;
                        case 3: system("color 1C"); break;
                        default: system("color 17"); printf("Uncorrect answer. Ddefault seted WHITE color"); break;
                        }
                            }
                            else {
                                if (n==4)
                                {
                                    switch (txt_color_chs)
                        {
                        case 1: system("color 70"); break;
                        case 2: system("color 7A"); break;
                        case 3: system("color 7C"); break;
                        default: system("color 77"); printf("Uncorrect answer. Ddefault seted WHITE color"); break;
                        }
                                }
                                else {
                                    if (n==5) {
                                    switch (txt_color_chs)
                        {
                        case 1: system("color B0"); break;
                        case 2: system("color BA"); break;
                        case 3: system("color BC"); break;
                        default: system("color B7"); printf("Uncorrect answer. Ddefault seted WHITE color"); break;
                        }
                                    }
                                    else {
                                        if (n==6) {
                                            switch (txt_color_chs)
                        {
                        case 1: system("color 00"); break;
                        case 2: system("color 0A"); break;
                        case 3: system("color 0C"); break;
                        default: system("color 07"); printf("Uncorrect answer. Ddefault seted WHITE color"); break;
                        }
                                        }
                                    }
                                }
                            }
                        }
                    }
        }
        else {
            if (ch_skin==2)
            {
            printf("Select skin:\n\n1.Light grey\n2.Dark red\n3.Like a paper\n\nYour choice: ");
            scanf("%d", &skin);
                switch (skin)
                    {
                case 1: system("color 70"); break;
                case 2: system("color 0C"); break;
                case 3: system("color F0"); break;
                default: printf("None of the proposal was not selected.\nWell, program will set default author skin\n");
                system("color 1D"); break;
                }
        }
      }
    }

    do {
    x_prov=0;
        do {
        prov++;
        if (prov>1) printf("Only digits! Try again\n");
        printf("\nEnter Xmin: ");
        fflush(stdin);
        }
        while (!scanf("%f", &xmin));
        prov=0;

        do {
        prov++;
        if (prov>1) printf("Only digits! Try again\n");
        printf("Enter Xmax: ");
        fflush(stdin);
        }
        while (!scanf("%f", &xmax));
        prov=0;

    if (!(xmin<xmax))
        { printf("Xmax must be bigger then Xmin!\n");
          if (xmin>xmax) {
          printf("So program will swaps Xmin & Xmax...");
                 xch=xmin;
                 xmin=xmax;
                 xmax=xch;
                 printf("\n Xmin = %.1f\t\n", xmin);
                 printf(" Xmax = %.1f\t", xmax);

          }
          else {
                if (xmax==xmin) {
                   printf("Enter again plz\n");
                   x_prov++;
                            }
            }
        }
    }
        while(x_prov>0);

    do {
    prov++;
    if (prov>1) printf("Enter only 1 or 2!");
    printf("\nWhat do you prefer? Dots = 1, Steps = 2\nEnter your choice: ");
    fflush(stdin);
    }
    while (!scanf("%d", &chs) || chs != 1 && chs != 2);
    prov=0;

    if(chs==1)
    {
        do {
            chs_prov=0;
                do {    prov++;
                        if (prov>1) printf("Only digits! Try again\n");
                        printf("Enter dots value: ");
                        fflush(stdin);
                }
                        while (!scanf("%d", &dot));
                        prov=0;
            if (dot==1) { printf("Table with one dot is incorrect! Try again\n"); chs_prov++; } //Work but strange: step=(xmax-xmin)/dot; }
            else {
                if (dot>1) { step=(xmax-xmin)/(dot-1); }
                else {
                    if (dot==0) { printf("Table without dots will be empty! Try again\n"); chs_prov++;}
            }
          }
        }
    while (chs_prov>0);
    }
    else
    {
        if(chs==2) {
                    do {
                    prov++;
                    if (prov>1) printf("Only digits!\n");
                    printf("\nEnter step value: ");
                    fflush(stdin);
                    }
                    while (!scanf("%f", &step));
                    prov=0;
        }
    }

                        printf(" %c",201); for (i=0; i<7; i++) {printf("%c", 205);} printf("%c", 203);     //High border
                        for (i=0; i<=20; i++) {printf("%c", 205);} printf("%c", 203);
                        for (i=0; i<=21; i++) {printf("%c", 205);} printf("%c\n", 187);

                        printf(" %c",186);
                        printf("%6s ", "Xmin:"); printf("%c",186);   // nazv xmin
                        printf("%20s ", "Xmax:"); printf("%c",186);   // nazv Xmax
                        printf("%21s ", "Step:"); printf("%c\n",186); // nazv step

                        printf(" %c",204); for (i=0; i<7; i++) {printf("%c", 205);} printf("%c", 206); //First underline string
                        for (i=0; i<=20; i++) {printf("%c", 205);} printf("%c", 206);
                        for (i=0; i<=21; i++) {printf("%c", 205);} printf("%c\n", 185);

                        printf(" %c",186);
                        printf("%6.2f ", xmin); printf("%c",186);   // xmin
                        printf("%20.2f ", xmax); printf("%c",186);   // xmax
                        printf("%21.2f ", step); printf("%c\n",186); // step

                        printf(" %c",204); for (i=0; i<7; i++) {printf("%c", 205);} printf("%c", 206); //Second underline string
                        for (i=0; i<=20; i++) {printf("%c", 205);} printf("%c", 206);
                        for (i=0; i<=21; i++) {printf("%c", 205);} printf("%c\n", 185);

                        printf(" %c",186);
                        printf("%6s ", "N:"); printf("%c",186);   // N
                        printf("%20s ", "X:"); printf("%c",186);   // X
                        printf("%21s ", "Y:"); printf("%c\n",186); // Y

                        printf(" %c",204); for (i=0; i<7; i++) {printf("%c", 205);} printf("%c", 206); //Third underline string
                        for (i=0; i<=20; i++) {printf("%c", 205);} printf("%c", 206);
                        for (i=0; i<=21; i++) {printf("%c", 205);} printf("%c\n", 185);


                        for(x=xmin; x<=xmax; x=x+step)     // MAIN CYCLE
                        {
                        printf(" %c",186); printf("%6i ", N);
                        N++;
                        printf("%c",186);                                                       // val N
                        printf("%20.2f ", x); printf("%c",186);                               // val X
Y=pow(x,2)-5*x+3;       printf("%21.2f ", Y); printf("%c\n",186);                           // val Y

                        printf(" %c",204); for (i=0; i<7; i++) {printf("%c", 205);} printf("%c", 206);
                        for (i=0; i<=20; i++) {printf("%c", 205);} printf("%c", 206);
                        for (i=0; i<=21; i++) {printf("%c", 205);} printf("%c\n", 185);// Underline string

                            if (x==xmax) {
                            printf(" %c",200); for (i=0; i<7; i++) {printf("%c", 205);} printf("%c", 202);
                            for (i=0; i<=20; i++) {printf("%c", 205);} printf("%c", 202);                //Last underline string
                            for (i=0; i<=21; i++) {printf("%c", 205);} printf("%c\n", 188);
                            }

                            if (x>xmax-step)
                            {
                                    if (xmax>x)
                                    {
                                    printf(" %c",200); for (i=0; i<7; i++) {printf("%c", 205);} printf("%c", 202);
                                    for (i=0; i<=20; i++) {printf("%c", 205);} printf("%c", 202);                //Last undr prov
                                    for (i=0; i<=21; i++) {printf("%c", 205);} printf("%c\n", 188);
                                    }
                            }

                                    if (N==10)
                                    {
                                        N_next=0;
                                    }

                                            if (N_next%12==0)
                                            {
                                                system("PAUSE"); system("cls");
                                            }
                                            N_next++;
                        }
return 0;
}