8a7aac7c23
- Renamed all folders from format NEx (e.g., 1Ex, 2Ex...) to 0NEx (01Ex, 02Ex, etc.) - Updated subdirectories and files accordingly - Removed old main Makefile and tasks (a01.c–a09.c, solve.c, io_status.h), likely obsolete - Cleaned up deprecated task binaries and configs
25 lines
602 B
C
25 lines
602 B
C
#include "solve.h"
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void t7_solve(char **a, int n, int (*cmp)(const char *, const char *))
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{
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int i;
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for (i = 1; i < n; ++i) append(a, i+1, a[i], find(a, i, a[i], cmp));
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}
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int find(char **a, int n, char *x, int (*cmp)(const char *, const char *)) {
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int avg = (n + (-1)*(n%2)) / 2;
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int comp;
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if (n == 0) return 0;
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comp = cmp(x, a[avg]);
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if (comp < 0) return find(a, avg, x, cmp);
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if (comp > 0) return avg+1 + find(a+(avg+1), n-(avg+1), x, cmp);
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else return avg;
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}
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void append(char **arr, int n, char *a, int index)
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{
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for (int i = n-1; i > index; --i) arr[i] = arr[i-1];
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arr[index] = a;
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}
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