import java.util.ArrayList; import java.util.List; import java.util.Scanner; public class jed { static interface Expression { void print(); Expression normalize(); int countNumber(); } static class Add implements Expression { private Expression a; private Expression b; Add(Expression a, Expression b) { this.a = a; this.b = b; } @Override public void print() { a.print(); System.out.print("+"); b.print(); } @Override public Expression normalize() { a = a.normalize(); b = b.normalize(); return this; } @Override public int countNumber() { return a.countNumber() + b.countNumber(); } } static class Multiply implements Expression { List<Expression> expressions; Multiply(List<Expression> expressions) { this.expressions = expressions; } @Override public void print() { String glue = "("; for (int i = 0; i < expressions.size(); i++) { System.out.print(glue); expressions.get(i).print(); System.out.print(")"); glue = "*("; } } @Override public Expression normalize() { for (int i = 0; i < expressions.size(); i++) { expressions.set(i, expressions.get(i).normalize()); } return this; } @Override public int countNumber() { int sum = 0; for (int i = 0; i < expressions.size(); i++) { sum += expressions.get(i).countNumber(); } return sum; } } static class Number implements Expression { private final int num; Number(int num) { this.num = num; } @Override public void print() { String glue = ""; for (int i = 0; i < num; i++) { System.out.print(glue); System.out.print(1); glue = "+"; } } public Expression normalize() { if (this.num > 5) { List<Expression> factors = findFactors(this.num); if (factors.size() == 0) { factors = findFactors(this.num - 1); return new Add(new Multiply(factors).normalize(), new Number(1)); } return new Multiply(factors).normalize(); } return this; } @Override public int countNumber() { return this.num; } @Override public String toString() { return String.valueOf(num); } } public static void main(String[] args) { Scanner s = new Scanner(System.in); int t = s.nextInt(); for (int i = 0; i < t; i++) { Expression root = null; int k = s.nextInt(); List<Expression> factors = findFactors(k); if (factors.size() == 0) { factors = findFactors(k - 1); root = new Add(new Multiply(factors), new Number(1)); } else if (factors.size() == 1) { root = new Number(k); } else { root = new Multiply(factors); } root = root.normalize(); if (root.countNumber() > 100) { System.out.println("NIE"); } root.print(); System.out.println(); } } private static List<Expression> findFactors(int k) { List<Expression> f = new ArrayList<>(); if (k <= 5) { f.add(new Number(k)); return f; } int i = 2; int stop = k / 2; while (i <= stop) { if (k % i == 0) { f.add(new Number(i)); k = k / i; } else { i++; } } return f; } }
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 | import java.util.ArrayList; import java.util.List; import java.util.Scanner; public class jed { static interface Expression { void print(); Expression normalize(); int countNumber(); } static class Add implements Expression { private Expression a; private Expression b; Add(Expression a, Expression b) { this.a = a; this.b = b; } @Override public void print() { a.print(); System.out.print("+"); b.print(); } @Override public Expression normalize() { a = a.normalize(); b = b.normalize(); return this; } @Override public int countNumber() { return a.countNumber() + b.countNumber(); } } static class Multiply implements Expression { List<Expression> expressions; Multiply(List<Expression> expressions) { this.expressions = expressions; } @Override public void print() { String glue = "("; for (int i = 0; i < expressions.size(); i++) { System.out.print(glue); expressions.get(i).print(); System.out.print(")"); glue = "*("; } } @Override public Expression normalize() { for (int i = 0; i < expressions.size(); i++) { expressions.set(i, expressions.get(i).normalize()); } return this; } @Override public int countNumber() { int sum = 0; for (int i = 0; i < expressions.size(); i++) { sum += expressions.get(i).countNumber(); } return sum; } } static class Number implements Expression { private final int num; Number(int num) { this.num = num; } @Override public void print() { String glue = ""; for (int i = 0; i < num; i++) { System.out.print(glue); System.out.print(1); glue = "+"; } } public Expression normalize() { if (this.num > 5) { List<Expression> factors = findFactors(this.num); if (factors.size() == 0) { factors = findFactors(this.num - 1); return new Add(new Multiply(factors).normalize(), new Number(1)); } return new Multiply(factors).normalize(); } return this; } @Override public int countNumber() { return this.num; } @Override public String toString() { return String.valueOf(num); } } public static void main(String[] args) { Scanner s = new Scanner(System.in); int t = s.nextInt(); for (int i = 0; i < t; i++) { Expression root = null; int k = s.nextInt(); List<Expression> factors = findFactors(k); if (factors.size() == 0) { factors = findFactors(k - 1); root = new Add(new Multiply(factors), new Number(1)); } else if (factors.size() == 1) { root = new Number(k); } else { root = new Multiply(factors); } root = root.normalize(); if (root.countNumber() > 100) { System.out.println("NIE"); } root.print(); System.out.println(); } } private static List<Expression> findFactors(int k) { List<Expression> f = new ArrayList<>(); if (k <= 5) { f.add(new Number(k)); return f; } int i = 2; int stop = k / 2; while (i <= stop) { if (k % i == 0) { f.add(new Number(i)); k = k / i; } else { i++; } } return f; } } |