Spring 2018 -- Number 4

Spring 2018
4(c) number ta baade 4 er baki gula.

4.a.

#include<stdio.h>
int main()
{
    double a,b,c,x,y;
    scanf("%lf %lf %lf",&a,&b,&c);
    y=sqrt((b*b)-(4*a*c));
    if(y>=0){
        x=(-b+y)/2*a;
        printf("X1 = %.2lf\n",x);
        x=(-b-y)/2*a;
        printf("X2 = %.2lf\n",x);
    }
    else{
        printf("Impossible Calculation");
    }
    return 0;
}


4.b.

#include<stdio.h>
int main()
{
    int n,i,f=0;;
    scanf("%d",&n);
    for(i=2;i<(n/2);i++){
        if(n%i==0){
            f=1;
            break;
        }
    }
    if(f==1){
        printf("Composite Number\n");
    }
    else{
        printf("Not a Composite Number\n");
    }
    return 0;
}


4.d.

#include<stdio.h>
int main()
{
    int i,j,n;
    scanf("%d",&n);
    int source[n+3],destination[n+3];
    for(i=0;i<n;i++){
        scanf("%d",&source[i]);
    }
    for(i=0,j=n-1;i<n;i++,j--){
        destination[j]=source[i];
    }
    printf("destination: ");
    for(i=0;i<n;i++){
        printf("%d ",destination[i]);
    }
    return 0;
}


4.e.

#include<stdio.h>
int main()
{
    char str[100];
    int i,wo=0,w=0,s=0;
    scanf("%[^\n]s",str);
    for(i=0;str[i]!='\0';i++){
        if(str[i]==' '||str[i]=='.'){
            wo++;
            if(str[i]=='.'&&str[i+1]==' '){
                w++;
            }
            if(str[i]=='.'){
                s++;
            }
        }
    }
    printf("Number of Words: %d\n",wo-w);
    printf("Number of White Spaces: %d\n",wo-s);
    printf("Number of Full Stops: %d\n",s);
    return 0;
}