Mounikachenna12 / Design-and-Analysis-of-Algorithms

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Merge sort #21

Open Mounikachenna12 opened 1 year ago

Mounikachenna12 commented 1 year ago
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Mounikachenna12 commented 1 year ago

include

define max 10

int a[11] = { 10, 14, 19, 26, 27, 31, 33, 35, 42, 44, 0 }; int b[10];

void merging(int low, int mid, int high) { int l1, l2, i;

for(l1 = low, l2 = mid + 1, i = low; l1 <= mid && l2 <= high; i++) { if(a[l1] <= a[l2]) b[i] = a[l1++]; else b[i] = a[l2++]; }

while(l1 <= mid)
b[i++] = a[l1++];

while(l2 <= high)
b[i++] = a[l2++];

for(i = low; i <= high; i++) a[i] = b[i]; }

void sort(int low, int high) { int mid;

if(low < high) { mid = (low + high) / 2; sort(low, mid); sort(mid+1, high); merging(low, mid, high); } else { return; }
}

int main() { int i;

printf("List before sorting\n");

for(i = 0; i <= max; i++) printf("%d ", a[i]);

sort(0, max);

printf("\nList after sorting\n");

for(i = 0; i <= max; i++) printf("%d ", a[i]); }