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@@ -1,7 +1,4 @@
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// O(sqrt(x)) Exhaustive Primality Test
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-#include <cmath>
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-#define EPS 1e-7
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-typedef long long LL;
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bool IsPrimeSlow (LL x)
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{
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if(x<=1) return false;
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@@ -15,37 +12,36 @@ bool IsPrimeSlow (LL x)
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return true;
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}
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// Primes less than 1000:
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-// 2 3 5 7 11 13 17 19 23 29 31 37
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-// 41 43 47 53 59 61 67 71 73 79 83 89
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-// 97 101 103 107 109 113 127 131 137 139 149 151
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-// 157 163 167 173 179 181 191 193 197 199 211 223
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-// 227 229 233 239 241 251 257 263 269 271 277 281
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-// 283 293 307 311 313 317 331 337 347 349 353 359
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-// 367 373 379 383 389 397 401 409 419 421 431 433
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-// 439 443 449 457 461 463 467 479 487 491 499 503
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-// 509 521 523 541 547 557 563 569 571 577 587 593
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-// 599 601 607 613 617 619 631 641 643 647 653 659
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-// 661 673 677 683 691 701 709 719 727 733 739 743
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-// 751 757 761 769 773 787 797 809 811 821 823 827
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-// 829 839 853 857 859 863 877 881 883 887 907 911
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-// 919 929 937 941 947 953 967 971 977 983 991 997
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-
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+// 2 3 5 7 11 13 17 19 23 29 31 37
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+// 41 43 47 53 59 61 67 71 73 79 83 89
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+// 97 101 103 107 109 113 127 131 137 139 149 151
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+// 157 163 167 173 179 181 191 193 197 199 211 223
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+// 227 229 233 239 241 251 257 263 269 271 277 281
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+// 283 293 307 311 313 317 331 337 347 349 353 359
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+// 367 373 379 383 389 397 401 409 419 421 431 433
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+// 439 443 449 457 461 463 467 479 487 491 499 503
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+// 509 521 523 541 547 557 563 569 571 577 587 593
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+// 599 601 607 613 617 619 631 641 643 647 653 659
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+// 661 673 677 683 691 701 709 719 727 733 739 743
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+// 751 757 761 769 773 787 797 809 811 821 823 827
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+// 829 839 853 857 859 863 877 881 883 887 907 911
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+// 919 929 937 941 947 953 967 971 977 983 991 997
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// Other primes:
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-// The largest prime smaller than 10 is 7.
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-// The largest prime smaller than 100 is 97.
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-// The largest prime smaller than 1000 is 997.
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-// The largest prime smaller than 10000 is 9973.
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-// The largest prime smaller than 100000 is 99991.
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-// The largest prime smaller than 1000000 is 999983.
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-// The largest prime smaller than 10000000 is 9999991.
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-// The largest prime smaller than 100000000 is 99999989.
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-// The largest prime smaller than 1000000000 is 999999937.
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-// The largest prime smaller than 10000000000 is 9999999967.
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-// The largest prime smaller than 100000000000 is 99999999977.
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-// The largest prime smaller than 1000000000000 is 999999999989.
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-// The largest prime smaller than 10000000000000 is 9999999999971.
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-// The largest prime smaller than 100000000000000 is 99999999999973.
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-// The largest prime smaller than 1000000000000000 is 999999999999989.
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-// The largest prime smaller than 10000000000000000 is 9999999999999937.
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-// The largest prime smaller than 100000000000000000 is 99999999999999997.
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-// The largest prime smaller than 1000000000000000000 is 999999999999999989.
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+// The largest prime smaller than 10 is 7.
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+// 100 is 97.
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+// 1000 is 997.
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+// 10000 is 9973.
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+// 100000 is 99991.
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+// 1000000 is 999983.
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+// 10000000 is 9999991.
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+// 100000000 is 99999989.
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+// 1000000000 is 999999937.
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+// 10000000000 is 9999999967.
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+// 100000000000 is 99999999977.
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+// 1000000000000 is 999999999989.
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+// 10000000000000 is 9999999999971.
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+// 100000000000000 is 99999999999973.
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+// 1000000000000000 is 999999999999989.
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+// 10000000000000000 is 9999999999999937.
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+// 100000000000000000 is 99999999999999997.
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+// 1000000000000000000 is 999999999999999989.
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Olivier Marty