import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.Iterator; import java.util.LinkedList; /** * Created by michal on 22.11.16. */ public class jed { static class ResultPair { int sum1; LinkedList<String> expressions; ResultPair(int sum1, LinkedList<String> exp) { this.sum1 = sum1; this.expressions = exp; } } private static int fun(int x, int c, int n) { return (x * x + c) % n; } private static int gcd(int x, int y) { int r; while (y != 0) { r = x % y; x = y; y = r; } return x; } private static int factorize(int n, int c) { int d = 1; int x = 2; int y = 2; while (d == 1) { x = fun(x, c, n); y = fun(fun(y, c, n), c, n); d = gcd(Math.abs(x - y), n); } if (d == n) { return -1; } else { return d; } } private static boolean isProbablyPrime(int x, int k) { if (x == 1) { return false; } if (x == 2) { return true; } if (x % 2 == 0) { return false; } --x; int s = 1; int p2 = 2; while (x % p2 == 0) { p2 <<= 1; ++s; } --s; p2 >>= 1; int d = x / p2; int a; for (int i=0; i < k; ++i) { a = 1 + (int)(Math.random() * x); if((int)(Math.pow(a, d)) % x != 1 ) { for (int j = 0; j < s; ++j) { if((int)(d*Math.pow(2, j)) % x == -1 ) { return false; } } } else { return true; } } return false; } public static void main(String args[]) throws IOException { BufferedReader bi = new BufferedReader(new InputStreamReader(System.in)); int t = Integer.parseInt(bi.readLine()); for(int i=0; i < t; ++i) { ResultPair result = doit(Integer.parseInt(bi.readLine())); StringBuilder stringBuilder = new StringBuilder(); if(result.sum1 > 100) { System.out.println("NIE"); continue; } Iterator<String> it = result.expressions.iterator(); String s; while (it.hasNext()) { s = it.next(); if (s.isEmpty() && it.hasNext()) { s = "*"; } stringBuilder.append(s); } System.out.println(stringBuilder.toString().replace(")(",")*(")); } } private static ResultPair doit(int n) { int orig_n = n; LinkedList<String> factorsStr = new LinkedList<>(); if (n == 1) { factorsStr.add("1"); return new ResultPair(1, factorsStr); } if (n == 2) { factorsStr.add("(1+1)"); return new ResultPair(2, factorsStr); } if (n == 3) { factorsStr.add("(1+1+1)"); return new ResultPair(3, factorsStr); } if (isProbablyPrime(n, 1000)) { ResultPair resultPair = doit(n - 1); ++resultPair.sum1; resultPair.expressions.addFirst("(1+"); String tmp = resultPair.expressions.getLast(); if ("".equals(tmp)) { resultPair.expressions.set(resultPair.expressions.size() - 1, ")"); } else { resultPair.expressions.addLast(")"); } return resultPair; } LinkedList<Integer> factors = new LinkedList<>(); int factors_sum = 0; int factor; int max_factor = 0; int max_factor_i = 0; int fi = 0; int c = 31607; while (n != 0) { //c = 2 + (int)(Math.random() * 19); factor = factorize(n, c); if(factor > 0) { factors.add(factor); factors_sum += factor; if (factor > max_factor) { max_factor = factor; max_factor_i = fi; } n = n / factor; } else { factors.add(n); factors_sum += n; if (n > max_factor) { max_factor = n; max_factor_i = fi; } n = 0; } ++fi; } Iterator<Integer> it = factors.iterator(); int f; int i = 0; int sum1 = 0; while (it.hasNext()) { f = it.next(); if (factors_sum <= 100 && i != max_factor_i) { for (int j = 1; j <= f; ++j) { factorsStr.add((j == 1 ? "(" : "") + "1" + (j == f ? ")" : "+")); } factorsStr.add(it.hasNext() ? "*" : ""); sum1 += f; } else if (f != orig_n){ ResultPair tmp = doit(f); factorsStr.addAll(tmp.expressions); sum1 += tmp.sum1; } else { // ResultPair resultPair = doit(f - 1); ++resultPair.sum1; resultPair.expressions.addFirst("(1+"); String tmp = resultPair.expressions.getLast(); if ("".equals(tmp)) { resultPair.expressions.set(resultPair.expressions.size() - 1, ")"); } else { resultPair.expressions.addLast(")"); } return resultPair; // } ++i; } return new ResultPair(sum1, factorsStr); } }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 | import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.Iterator; import java.util.LinkedList; /** * Created by michal on 22.11.16. */ public class jed { static class ResultPair { int sum1; LinkedList<String> expressions; ResultPair(int sum1, LinkedList<String> exp) { this.sum1 = sum1; this.expressions = exp; } } private static int fun(int x, int c, int n) { return (x * x + c) % n; } private static int gcd(int x, int y) { int r; while (y != 0) { r = x % y; x = y; y = r; } return x; } private static int factorize(int n, int c) { int d = 1; int x = 2; int y = 2; while (d == 1) { x = fun(x, c, n); y = fun(fun(y, c, n), c, n); d = gcd(Math.abs(x - y), n); } if (d == n) { return -1; } else { return d; } } private static boolean isProbablyPrime(int x, int k) { if (x == 1) { return false; } if (x == 2) { return true; } if (x % 2 == 0) { return false; } --x; int s = 1; int p2 = 2; while (x % p2 == 0) { p2 <<= 1; ++s; } --s; p2 >>= 1; int d = x / p2; int a; for (int i=0; i < k; ++i) { a = 1 + (int)(Math.random() * x); if((int)(Math.pow(a, d)) % x != 1 ) { for (int j = 0; j < s; ++j) { if((int)(d*Math.pow(2, j)) % x == -1 ) { return false; } } } else { return true; } } return false; } public static void main(String args[]) throws IOException { BufferedReader bi = new BufferedReader(new InputStreamReader(System.in)); int t = Integer.parseInt(bi.readLine()); for(int i=0; i < t; ++i) { ResultPair result = doit(Integer.parseInt(bi.readLine())); StringBuilder stringBuilder = new StringBuilder(); if(result.sum1 > 100) { System.out.println("NIE"); continue; } Iterator<String> it = result.expressions.iterator(); String s; while (it.hasNext()) { s = it.next(); if (s.isEmpty() && it.hasNext()) { s = "*"; } stringBuilder.append(s); } System.out.println(stringBuilder.toString().replace(")(",")*(")); } } private static ResultPair doit(int n) { int orig_n = n; LinkedList<String> factorsStr = new LinkedList<>(); if (n == 1) { factorsStr.add("1"); return new ResultPair(1, factorsStr); } if (n == 2) { factorsStr.add("(1+1)"); return new ResultPair(2, factorsStr); } if (n == 3) { factorsStr.add("(1+1+1)"); return new ResultPair(3, factorsStr); } if (isProbablyPrime(n, 1000)) { ResultPair resultPair = doit(n - 1); ++resultPair.sum1; resultPair.expressions.addFirst("(1+"); String tmp = resultPair.expressions.getLast(); if ("".equals(tmp)) { resultPair.expressions.set(resultPair.expressions.size() - 1, ")"); } else { resultPair.expressions.addLast(")"); } return resultPair; } LinkedList<Integer> factors = new LinkedList<>(); int factors_sum = 0; int factor; int max_factor = 0; int max_factor_i = 0; int fi = 0; int c = 31607; while (n != 0) { //c = 2 + (int)(Math.random() * 19); factor = factorize(n, c); if(factor > 0) { factors.add(factor); factors_sum += factor; if (factor > max_factor) { max_factor = factor; max_factor_i = fi; } n = n / factor; } else { factors.add(n); factors_sum += n; if (n > max_factor) { max_factor = n; max_factor_i = fi; } n = 0; } ++fi; } Iterator<Integer> it = factors.iterator(); int f; int i = 0; int sum1 = 0; while (it.hasNext()) { f = it.next(); if (factors_sum <= 100 && i != max_factor_i) { for (int j = 1; j <= f; ++j) { factorsStr.add((j == 1 ? "(" : "") + "1" + (j == f ? ")" : "+")); } factorsStr.add(it.hasNext() ? "*" : ""); sum1 += f; } else if (f != orig_n){ ResultPair tmp = doit(f); factorsStr.addAll(tmp.expressions); sum1 += tmp.sum1; } else { // ResultPair resultPair = doit(f - 1); ++resultPair.sum1; resultPair.expressions.addFirst("(1+"); String tmp = resultPair.expressions.getLast(); if ("".equals(tmp)) { resultPair.expressions.set(resultPair.expressions.size() - 1, ")"); } else { resultPair.expressions.addLast(")"); } return resultPair; // } ++i; } return new ResultPair(sum1, factorsStr); } } |