C Exercise Example 8
Title:Output9*9Mnemonic.
Program analysis:Consider rows and columns, there are 9 rows and 9 columns, i controls rows, j controls columns.
Program source code:
Example
// Created by www.example.com on 15/11/9.
// Copyright © 2015 Example. All rights reserved.
//
#include <stdio.h>
int main() {
int i, j, result;
printf("\n");
for (i = 1; i < 10; i++) {
for (j = 1; j <= i; j++) {
result = i * j;
printf("%d*%d=%-3d", i, j, result); /*-3d means left-aligned, occupying 3 positions*/
}
printf("\n"); /*Newline after each line*/
}
return 0;
}
Detailed explanation of the code:
for (i = 1; i < 10; i++): The outer loop iterates the multiplicand (i) from 1 to 9.for (j = 1; j <= i; j++): The inner loop iterates the multiplier (j) from 1 to i.result = i * j;: Calculate the result of multiplication.printf("%d*%d=%-3d", i, j, result);: Print the multiplication expression and result in a left-aligned format occupying 3 positions.printf("\n");: After each inner loop ends, print a newline to move to the next row to process the next multiplicand.
The output result of the above example is:
1*1=1 2*1=2 2*2=4 3*1=3 3*2=6 3*3=9 4*1=4 4*2=8 4*3=12 4*4=16 5*1=5 5*2=10 5*3=15 5*4=20 5*5=25 6*1=6 6*2=12 6*3=18 6*4=24 6*5=30 6*6=36 7*1=7 7*2=14 7*3=21 7*4=28 7*5=35 7*6=42 7*7=49 8*1=8 8*2=16 8*3=24 8*4=32 8*5=40 8*6=48 8*7=56 8*8=64 9*1=9 9*2=18 9*3=27 9*4=36 9*5=45 9*6=54 9*7=63 9*8=72 9*9=81other extensions