Nested Loops and Multiplication Tables for Problem Solving
Explore the concept of nested loops in programming with examples such as multiplication tables and triangular numbers. Dive into problem-solving using computers in a CSE classroom environment. Learn how to efficiently use nested for loops for various tasks.
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Presentation Transcript
Nesting of for loop One for statement can be nested within another for statement. for (i=0; i< m; ++i) { .. . for (j=0; j < n;++j) { Statement S; } // end of inner for statement }// end of outer for statement 6/3/2025 CSE 1001 Department of CSE 1
Nested loops #include <stdio.h> int main() { int n, number, triangularNumber=0, counter; for ( counter = 1; counter <= 5; counter++ ) { printf( What triangular number do you want? ); scanf( %d ,&number); for ( n = 1; n <= number; n++ ) triangularNumber = triangularNumber + n; printf( The %d th triangular number is %d: ,n- 1,triangularNumber); } return 0; } 6/3/2025 CSE 1001 Department of CSE 2
Example: Multiplication table for n tables up to k terms scanf( %d %d ,&n,&k); for (i=1; i<=k; i++) { for (j=1; j<=n; j++) { prod = i * j; printf( %d * %d = %d\t , j,i,prod); } printf( \n ); } Enter n & k values: 3 5 The table for 3 X 5 is 1 * 1= 1 2 * 1= 2 3 * 1= 3 1 * 2= 2 2 * 2= 4 3 * 2= 6 1 * 3= 3 2 * 3= 6 3 * 3= 9 1 * 4= 4 2 * 4= 8 3 * 4= 12 1 * 5= 5 2 * 5= 10 3 * 5= 15 6/3/2025 CSE 1001 Department of CSE 3
1 1 2 1 2 3 1 2 3 4 1 2 3 4 5 03-06-2025 CSE 1001 Problem Solving using Computers (PSUC) - 2018 4
