23 lines
721 B
Plaintext
23 lines
721 B
Plaintext
int N, C, R;
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[C:= 0;
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for N:= sqrt(269696) to -1>>1 do \to infinity (2^31-1)
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if rem(N/10)=4 or rem(N/10)=6 then \must end 6: 4^2=16; 6^2=36
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[R:= rem(N/100);
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if R=14 or R=36 or R=64 or R=86 then \14^2=196, etc.
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[R:= rem(N/1000);
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if R=236 or R=264 or R=736 or R=764 then \236^2=55696, etc.
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[C:= C+1; \count remaining tests
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if rem(N*N/1_000_000) = 269_696 then
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[IntOut(0, N);
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Text(0, "^^2 = ");
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IntOut(0, N*N);
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CrLf(0);
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IntOut(0, C);
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CrLf(0);
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exit;
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];
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];
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];
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];
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]
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