37 lines
793 B
C
37 lines
793 B
C
int main()
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{
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unsigned long long table[256];
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unsigned int i;
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for (i=0; i<256; ++i) {
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unsigned long long j;
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unsigned char x=i;
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for (j=0; j<5; ++j) {
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x += x<<1;
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x ^= x>>1;
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}
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for (j=0; j<5; ++j) {
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x += x<<1;
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x ^= x>>1;
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}
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for (j=0; j<5; ++j) {
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x += x<<1;
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x ^= x>>1;
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}
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for (j=0; j<5; ++j) {
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x += x<<1;
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x ^= x>>1;
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}
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for (j=0; j<5; ++j) {
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x += x<<1;
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x ^= x>>1;
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}
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table[i] ^= (((unsigned long long)x)<<16);
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}
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for (i=0; i<256; ++i) {
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if ((table[i]&0xff)==i)
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return 1;
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}
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return 0;
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}
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