Totient function: Difference between revisions
Content added Content deleted
m (→{{header|Phix}}: builtin comment) |
m (→{{header|ALGOL-M}}: formatting cleanup) |
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BEGIN |
BEGIN |
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INTEGER I, COUNT; |
INTEGER I, COUNT; |
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COUNT := 1; |
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FOR I := 2 STEP 1 UNTIL N DO |
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BEGIN |
BEGIN |
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IF GCD(N,I) = 1 THEN COUNT := COUNT + 1; |
IF GCD(N,I) = 1 THEN COUNT := COUNT + 1; |
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PHI := COUNT; |
PHI := COUNT; |
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END; |
END; |
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COMMENT - EXERCISE THE FUNCTION; |
COMMENT - EXERCISE THE FUNCTION; |
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FOR N := 1 STEP 1 UNTIL 25 DO |
FOR N := 1 STEP 1 UNTIL 25 DO |
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BEGIN |
BEGIN |
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WRITE(N, (TOTIENT := PHI(N))); |
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WRITEON(IF TOTIENT = (N-1) THEN " YES" ELSE " NO"); |
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END; |
END; |
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IF N = 100 THEN |
IF N = 100 THEN |
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WRITE("PRIMES UP TO 100 =", COUNT) |
WRITE("PRIMES UP TO 100 =", COUNT) |
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ELSE IF N = 1000 THEN |
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WRITE("PRIMES UP TO 1000 =", COUNT); |
WRITE("PRIMES UP TO 1000 =", COUNT); |
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END; |
END; |
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