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The sum of the first 40 positive integers (1-40) is: 820

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14y ago

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Write a C program to accept the elements of a 3 x 3 matrix and find its sum of the major diagonal elements The program should print the given matrix along with its sum of the major diagonal elements?

#include <stdio.h> #include <conio.h> void main() { int d[3][3] = { 1, 2, 6, 3, 8, 5, 5, 6, 7 }; int k = 0, j = 0; int sum1 = 0, sum2 = 0; for (j = 0; j < 3; j++) { for (k = 0; k < 3; k++) printf(" %3d", d[j][k]); printf("\n"); } for (j = 0; j < 3; j++) { sum1 = sum1 + d[j][j]; } k = 3 - 1; for (j = 0; j < 3; j++) { if (k >= 0) { sum2 = sum2 + d[j][k]; k--; } } printf("Sum of First diagonal= %d\n", sum1); printf("Sum of Second diagonal= %d", sum2); getch();


C program to find sum of all elements of a matrix?

/* @Autor: MD moniruzzaman http://www.youngprogrammer.com */ #include<stdio.h> #define maxn 5 int matrix[maxn][maxn] = { {1,2,3,3,4},{2,3,4,1,2},{ 4,5,6,7,8},{3,4,5,6,9},{4,3,2,1,0}}; /* Given matrix is: 1 2 3 3 4 2 3 4 1 2 4 5 6 7 9 3 4 5 6 9 4 3 2 1 0 */ int main() { int sum = 0, i, j; for(i = 0; i<5; i++) { for(j = 0; j<5; j++) { sum+= matrix[i][j]; } } printf("%d\n",sum); return 0; }