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C Program to display spellings of number 1-10 on entry

C Program to display spellings of number 1-10 on entry.   #include<stdio.h>   void main() { int num; printf("Enter a number between 1-10:"); scanf("%d",&num); printf("\n"); switch (num) { case 1: printf("ONE"); break; case 2: printf("TWO"); break; case 3: printf("THREE"); break; case 4: printf("FOUR"); break; case 5: printf("FIVE"); break; case 6: printf("SIX"); break; case 7: printf("SEVEN"); break; case 8: printf("EIGHT"); break; case 9: printf("NINE"); break; case 10: printf("TEN"); break; default:         printf("THE ENTERED NUMBER IS NOT BETWEEN 1-10"); } } OUTPUTS

C Program to add the series: 1 + (1 + 2) + (1 + 2 + 3) + …+ (1 +2 +3 + …+n)

C Program to add the series: 

1 + (1 + 2) + (1 + 2 + 3) + …+ (1 +2 +3 + …+n)

#include<stdio.h>
void main()
{
int i,s=0,c=0,n;
printf("Enter the nth term:");
scanf("%d",&n);
printf("\nAddition of the series:1+(1+2)+(1+2+3)+....+(1+2+3+....+n)\n");
for(i=1;i<=n;i++)
{
s=s+i;
c=c+s;
printf("\n\t%d",s);
}
printf("\n\t-----");
printf("\nResult: %d",c);

}

OUTPUTS




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