#include <iostream> #include <cmath> #include <cstdlib> #include <string> using namespace std; //************************************************************ //Test Millera-Rabina int dividers[40]; string result; bool last = false; int mulmod(int a, int b, int mod) { int x = 0; int y = a % mod; while(b>0) { if(b%2 == 1) { x = (x+y)%mod; } y=(y*2)%mod; b/=2; } return x % mod; } /* * modular exponentiation */ int modulo(int base, int exponent, int mod) { long long x = 1; long long y = base; while(exponent > 0) { if(exponent%2 == 1) x = (x * y)%mod; y = (y * y)%mod; exponent = exponent/2; } return x%mod; } /* * Miller-Rabin primality test, iteration signifies the accuracy */ bool Miller(int p,int iteration) { if(p<2) { return false; } if (p != 2 && p % 2==0) { return false; } int s = p-1; while(s % 2 == 0) { s /= 2; } for(int i = 0; i < iteration; ++i) { int a = rand() % (p - 1) + 1, temp = s; int mod = modulo(a, temp, p); while(temp != p - 1 && mod != 1 && mod != p - 1) { mod = mulmod(mod, mod, p); temp *= 2; } if(mod != p - 1 && temp % 2 == 0) { return false; } } return true; } //************************************************************ void output(int number) { bool isPrime; int countDividers = 0; isPrime = Miller(number,12); if(number == 1) { result += "1"; return; } if(number == 2) { //cout << "Mamy dwojke !!!" << endl; result += "(1+1)"; //cout << "(1+1)" << endl; return; } if(isPrime && number != 2) { //cout << "Mamy liczbe pierwsza = " << number << endl; result += "(1+"; //cout << "(1+" << endl; output(number-1); if(!last) { result += ")"; //cout << ")" << endl; } } if(!isPrime) { int i = 2; bool flaga = false; while(i*i <= number) { //cout << "Mamy liczbe = " << number << endl; if(number%i == 0) { flaga = true; number = number/i; //i = 1; //cout << "Liczba zmniejszona = " << number << endl; if(Miller(i, 10)) { //cout << "Rekurencyjne wywolanie i = " << i << endl; output(i); //i = 1; if(!last) { result += "*"; //cout << "*" << endl; } //break; } } if(flaga) { flaga = false; i = 1; } i++; } if(Miller(number,10)) { //cout << "Ostatnie wywolanie rekurencyjne number = " << number << endl; output(number); //result +=")"; //cout << "(" << endl; } /*result += "(1+1)"; //cout << "(1+1)" << endl; result += "*"; //cout << "*" << endl;*/ } } int main(int argc, char *argv[]) { int t; int number; cin >> t; while(t--) { cin >> number; output(number); cout << result << endl; result = ""; } return 0; }
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 | #include <iostream> #include <cmath> #include <cstdlib> #include <string> using namespace std; //************************************************************ //Test Millera-Rabina int dividers[40]; string result; bool last = false; int mulmod(int a, int b, int mod) { int x = 0; int y = a % mod; while(b>0) { if(b%2 == 1) { x = (x+y)%mod; } y=(y*2)%mod; b/=2; } return x % mod; } /* * modular exponentiation */ int modulo(int base, int exponent, int mod) { long long x = 1; long long y = base; while(exponent > 0) { if(exponent%2 == 1) x = (x * y)%mod; y = (y * y)%mod; exponent = exponent/2; } return x%mod; } /* * Miller-Rabin primality test, iteration signifies the accuracy */ bool Miller(int p,int iteration) { if(p<2) { return false; } if (p != 2 && p % 2==0) { return false; } int s = p-1; while(s % 2 == 0) { s /= 2; } for(int i = 0; i < iteration; ++i) { int a = rand() % (p - 1) + 1, temp = s; int mod = modulo(a, temp, p); while(temp != p - 1 && mod != 1 && mod != p - 1) { mod = mulmod(mod, mod, p); temp *= 2; } if(mod != p - 1 && temp % 2 == 0) { return false; } } return true; } //************************************************************ void output(int number) { bool isPrime; int countDividers = 0; isPrime = Miller(number,12); if(number == 1) { result += "1"; return; } if(number == 2) { //cout << "Mamy dwojke !!!" << endl; result += "(1+1)"; //cout << "(1+1)" << endl; return; } if(isPrime && number != 2) { //cout << "Mamy liczbe pierwsza = " << number << endl; result += "(1+"; //cout << "(1+" << endl; output(number-1); if(!last) { result += ")"; //cout << ")" << endl; } } if(!isPrime) { int i = 2; bool flaga = false; while(i*i <= number) { //cout << "Mamy liczbe = " << number << endl; if(number%i == 0) { flaga = true; number = number/i; //i = 1; //cout << "Liczba zmniejszona = " << number << endl; if(Miller(i, 10)) { //cout << "Rekurencyjne wywolanie i = " << i << endl; output(i); //i = 1; if(!last) { result += "*"; //cout << "*" << endl; } //break; } } if(flaga) { flaga = false; i = 1; } i++; } if(Miller(number,10)) { //cout << "Ostatnie wywolanie rekurencyjne number = " << number << endl; output(number); //result +=")"; //cout << "(" << endl; } /*result += "(1+1)"; //cout << "(1+1)" << endl; result += "*"; //cout << "*" << endl;*/ } } int main(int argc, char *argv[]) { int t; int number; cin >> t; while(t--) { cin >> number; output(number); cout << result << endl; result = ""; } return 0; } |