I'm a first grade student atm. and I'm struggling to finish my "homework" with c language. Right now I'm trying to apply 4 array lines sum to 4 int variables and here's what I've achieved so far:
#include <stdio.h>
#include <stdlib.h>
int main()
{
int dvimatisMas[4][4] = { {1,2,3,4}, {5,6,7,8}, {9,10,11,12}, {13, 14, 15, 16} };
int eiluciuSum[4];
for(int i = 0; i < 4; i++){
for(int x = 0; x < 4; x++){
for(int j = 0; j < 4; j++){
eiluciuSum[i] += dvimatisMas[x][j];
}
}
}
printf("suma 1 eil: %d\n", eiluciuSum[1]);
printf("suma 2 eil: %d\n", eiluciuSum[2]);
printf("suma 3 eil: %d\n", eiluciuSum[3]);
printf("suma 4 eil: %d\n", eiluciuSum[4]);
int min = 0;
int max = 0;
}
it simply gives out a bunch of answers even though there should be just 4. As you can see in the code I've tried to correct this by writing 4 separate prints and specifying each bracket for them so yeah I obviously get 4 answers like I should but they aren't correct and still I shouldn't be specifying all of that anyway.
If I write something more "simple" I get the desired result:
int dvimatisMas[4][4] = { {1,2,3,4}, {5,6,7,8}, {9,10,11,12}, {13, 14, 15, 16} };
int eilute1 = 0;
int eilute2 = 0;
int eilute3 = 0;
int eilute4 = 0;
for(int i = 0; i < 4; i++){
eilute1 += dvimatisMas[0][i];
eilute2 += dvimatisMas[1][i];
eilute3 += dvimatisMas[2][i];
eilute4 += dvimatisMas[3][i];
}
printf("suma 1 eil: %d\n", eilute1);
printf("suma 2 eil: %d\n", eilute2);
printf("suma 3 eil: %d\n", eilute3);
printf("suma 4 eil: %d\n", eilute4);
But the problem is that I also have to print out the smallest number out of 'eilute' as well as the biggest. But I can't get to that point since I need 'eilute[]' (I called it 'eiluciuSum[]' in the first code) to be expanded by the code and to use it in an 'if' statement like "if(eilute[i] < 0){ min += eilute[i]; printf("smallest: %d", min)" etc. and thats how I'm supposed to do it (well at the very least something like that instead of bunch of complicated equations and I mean it is more short and 'professional' am I right?).
If I managed to explain my situation understandably could someone help and explain on what I'm doing wrong in the first provided code?
Thank you in advance.
The final version of your code is at the bottom.
Firstly, you don't need the variable x. Cut out the second for loop.
for(int i = 0; i < 4; i++) {
for(int j = 0; j < 4; j++) {
eiluciuSum[i] += dvimatisMas[i][j];
}
}
Secondly, the problem is that the eiluciuSum array is not initialized to zero. It already contains a garbage value in it from whatever was stored in that memory address before. You should replace its definition with this:
int eiluciuSum[4] = { 0 };
Then just put the printf statement after the inner loop like this:
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
eiluciuSum[i] += dvimatisMas[i][j];
}
printf("%d\n", eiluciuSum[i]);
}
And it should work fine without the 4 printf statements below.
Thirdly, in regards to finding the maximum/minimum values, all you need to do is set the max/min variables to the first element in the array and then loop through the array, looking for values larger/smaller than whatever is the current largest/smallest, and switch those values.
#include <stdio.h>
#include <stdlib.h>
int main()
{
int dvimatisMas[4][4] = { {1,2,3,4}, {5,6,7,8}, {9,10,11,12}, {13, 14, 15, 16} };
int eiluciuSum[4] = { 0 }; // initialize all elements of array to 0
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
eiluciuSum[i] += dvimatisMas[i][j];
}
printf("%d\n", eiluciuSum[i]);
}
int min = eiluciuSum[0]; // assume the first sum is the smallest
int max = eiluciuSum[0]; // assume the first sum is the largest
// loop through all elements of array and if you encounter one bigger/smaller
// than the current max/min, then make those the current max/min values
for (int i = 0; i < 4; i++) {
if (eiluciuSum[i] < min)
min = eiluciuSum[i];
if (eiluciuSum[i] > max)
max = eiluciuSum[i];
}
printf("The smallest sum is %d\n", min);
printf("The largest sum is %d\n", max);
}