# C Exercises: Find the quadrant to which a coordinate belongs

## C Basic Declarations and Expressions: Exercise-37 with Solution

Write a C program to read the coordinates (x, y) (in the Cartesian system) and find the quadrant to which it belongs (Quadrant -I, Quadrant -II, Quadrant -III, Quadrant -IV).

Note: A Cartesian coordinate system is a coordinate system that specifies each point uniquely in a plane by a pair of numerical coordinates.

These are often numbered from 1st to 4th and denoted by Roman numerals: I (where the signs of the (x,y) coordinates are I(+,+), II (−,+), III (−,−), and IV (+,−).

**Sample Solution:**

**C Code:**

```
#include <stdio.h>
int main() {
int x, y;
// Prompt for user input
printf("Input the Coordinate(x,y): ");
printf("\nx: ");
scanf("%d", &x);
printf("y: ");
scanf("%d", &y);
// Check which quadrant the point lies in
if(x > 0 && y > 0) {
printf("Quadrant-I(+,+)\n");
}
else if(x > 0 && y < 0) {
printf("Quadrant-II(+,-)\n");
}
else if(x < 0 && y < 0) {
printf("Quadrant-III(-,-)\n");
}
else if(x < 0 && y > 0) {
printf("Quadrant-IV(-,+)\n");
}
return 0;
}
```

Sample Output:

Input the Coordinate(x,y): x: 25 y: 15 Quadrant-I(+,+)

**Flowchart:**

**C programming Code Editor:**

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