2014-06-12 07:14:50 +04:00
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/* j/4/in_uni.c
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**
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** This file is in the public domain.
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*/
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#include "all.h"
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2014-09-04 07:10:43 +04:00
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2014-06-12 07:14:50 +04:00
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/* functions
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*/
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2014-09-06 00:13:24 +04:00
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u3_noun
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u3qdi_uni(
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u3_noun a,
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u3_noun b)
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{
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if ( u3_nul == a ) {
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return u3k(b);
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}
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2014-09-06 00:13:24 +04:00
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else if ( u3_nul == b ) {
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return u3k(a);
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}
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else {
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u3_noun l_a, n_a, r_a, lr_a;
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u3_noun l_b, n_b, r_b, lr_b;
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2014-11-06 03:20:01 +03:00
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if ( (c3n == u3r_cell(a, &n_a, &lr_a)) ) {
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return u3m_bail(c3__exit);
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2014-06-12 07:14:50 +04:00
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}
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2014-11-06 03:20:01 +03:00
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else if ( (c3n == u3r_cell(b, &n_b, &lr_b)) ) {
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return u3m_bail(c3__exit);
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2014-06-12 07:14:50 +04:00
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}
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else {
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if ( c3y == u3qc_vor(n_a, n_b) ) {
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if ( c3n == u3r_cell(lr_a, &l_a, &r_a) ) {
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return u3m_bail(c3__exit);
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2014-06-12 07:14:50 +04:00
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}
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2014-11-06 03:20:01 +03:00
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else if ( c3n == u3r_cell(lr_b, &l_b, &r_b) ) {
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return u3m_bail(c3__exit);
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}
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else if ( c3y == u3r_sing(n_a, n_b) ) {
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return u3nt(
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2014-09-04 01:33:18 +04:00
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2014-09-06 00:13:24 +04:00
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u3k(n_b),
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u3qdi_uni(u3k(l_a), u3k(l_b)),
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u3qdi_uni(u3k(r_a), u3k(r_b)));
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}
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2014-11-06 22:13:57 +03:00
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else if ( c3y == u3qc_hor(n_b, n_a) ) {
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return u3qdi_uni(
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2014-09-06 00:13:24 +04:00
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u3nt(
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u3k(n_a),
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u3qdi_uni(
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u3k(l_a),
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u3nt(
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u3k(n_b),
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u3k(l_b),
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u3k(u3_nul))),
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u3k(r_a)),
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u3k(r_b));
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2014-06-12 07:14:50 +04:00
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}
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else {
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2014-11-06 22:13:57 +03:00
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return u3qdi_uni(
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u3nt(
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u3k(n_a),
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u3k(l_a),
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u3qdi_uni(
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u3k(r_a),
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u3nt(
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u3k(n_b),
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u3k(u3_nul),
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u3k(r_b)))),
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u3k(l_b));
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}
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}
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2014-11-06 03:20:01 +03:00
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else if ( c3n == u3r_cell(lr_b, &l_b, &r_b) ) {
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return u3m_bail(c3__exit);
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2014-06-12 07:14:50 +04:00
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}
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2014-11-06 03:20:01 +03:00
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else if ( c3n == u3r_cell(lr_a, &l_a, &r_a) ) {
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return u3m_bail(c3__exit);
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2014-06-12 07:14:50 +04:00
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}
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2014-11-06 03:20:01 +03:00
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else if ( c3y == u3r_sing(n_b, n_a) ) {
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return u3nt(
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2014-09-04 01:33:18 +04:00
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2014-09-06 00:13:24 +04:00
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u3k(n_b),
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u3qdi_uni(u3k(r_b), u3k(r_a)),
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u3qdi_uni(u3k(l_b), u3k(l_a)));
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2014-06-12 07:14:50 +04:00
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}
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2014-11-06 22:13:57 +03:00
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else if ( c3y == u3qc_hor(n_a, n_b) ) {
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return u3qdi_uni(
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2014-09-06 00:13:24 +04:00
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u3k(r_a),
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u3nt(
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u3k(n_b),
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u3qdi_uni(
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2014-09-06 00:13:24 +04:00
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u3nt(
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u3k(n_a),
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u3k(l_a),
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u3_nul),
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u3k(l_b)),
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u3k(r_b)));
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2014-06-12 07:14:50 +04:00
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}
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else {
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2014-11-06 22:13:57 +03:00
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return u3qdi_uni(
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2014-09-06 00:13:24 +04:00
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u3k(l_a),
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u3nt(
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u3k(n_b),
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u3k(l_b),
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u3qdi_uni(
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u3nt(
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u3k(n_a),
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u3k(u3_nul),
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u3k(r_a)),
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u3k(r_b))));
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2014-06-12 07:14:50 +04:00
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}
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}
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}
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}
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2014-09-06 00:13:24 +04:00
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u3_noun
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u3wdi_uni(
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u3_noun cor)
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2014-06-12 07:14:50 +04:00
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{
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2014-09-06 00:13:24 +04:00
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u3_noun a, b;
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2014-06-12 07:14:50 +04:00
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2014-11-18 00:56:51 +03:00
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if ( c3n == u3r_mean(cor, u3x_sam, &b, u3x_con_sam, &a, 0) ) {
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2014-11-06 03:20:01 +03:00
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return u3m_bail(c3__exit);
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2014-06-12 07:14:50 +04:00
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} else {
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2014-11-06 22:13:57 +03:00
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return u3qdi_uni(a, b);
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2014-06-12 07:14:50 +04:00
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}
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}
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