diff --git a/DS/C/Lab/Week4/transpose.c b/DS/C/Lab/Week4/transpose.c
new file mode 100644
index 0000000..14fbc08
--- /dev/null
+++ b/DS/C/Lab/Week4/transpose.c
@@ -0,0 +1,67 @@
+#include <stdio.h>
+
+#define MAX_TERMS 100
+
+typedef struct {
+    int row;
+    int col;
+    int value;
+} Term;
+
+void transpose(Term a[], Term b[]) {
+    int n, i, j, currentb;
+
+    n = a[0].value;  // Number of elements
+    b[0].row = a[0].col;  // Number of columns in b = number of rows in a
+    b[0].col = a[0].row;  // Number of rows in b = number of columns in a
+    b[0].value = n;
+
+    if (n > 0) {
+        currentb = 1;
+        for (i = 0; i < a[0].col; i++) {
+            for (j = 1; j <= n; j++) {
+                if (a[j].col == i) {
+                    b[currentb].row = a[j].col;
+                    b[currentb].col = a[j].row;
+                    b[currentb].value = a[j].value;
+                    currentb++;
+                }
+            }
+        }
+    }
+}
+
+void printMatrix(Term matrix[]) {
+    printf("Row\tColumn\tValue\n");
+    for (int i = 0; i <= matrix[0].value; i++) {
+        printf("%d\t%d\t%d\n", matrix[i].row, matrix[i].col, matrix[i].value);
+    }
+}
+
+int main() {
+    Term a[MAX_TERMS], b[MAX_TERMS];
+
+    // Initialize matrix a with user input
+    int numElements;
+    printf("Enter the number of non-zero elements: ");
+    scanf("%d", &numElements);
+
+    a[0].row = 6;  // Assuming a 6x6 matrix, can be changed if needed
+    a[0].col = 6;
+    a[0].value = numElements;
+
+    printf("Enter the elements in the format 'row col value':\n");
+    for (int i = 1; i <= numElements; i++) {
+        scanf("%d %d %d", &a[i].row, &a[i].col, &a[i].value);
+    }
+
+    printf("Original Matrix:\n");
+    printMatrix(a);
+
+    transpose(a, b);
+
+    printf("\nTransposed Matrix:\n");
+    printMatrix(b);
+
+    return 0;
+}
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