79 lines
1.2 KiB
C
79 lines
1.2 KiB
C
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#include <stdio.h>
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#include <stdlib.h>
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//~ int avg(int a, int b)
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//~ {
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//~ if (abs(a) < abs(b))
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//~ return a + (b - a) / 2;
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//~ else
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//~ return b + (a - b) / 2;
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//~ }
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int avg(int a, int b)
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{
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return abs(a) < abs(b) ? a + (b - a) / 2 : b + (a - b) / 2;
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}
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//~ int avg(int a, int b)
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//~ {
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//~ if (sign(a) != sign(b))
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//~ return (a + b) / 2;
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//~ else
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//~ return a + (b - a) / 2;
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//~ }
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//~ int avg(int a, int b)
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//~ {
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//~ if (((a > 0) && (b > 0)) || ((a < 0) && (b < 0)))
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//~ return a + (b - a) / 2;
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//~ else
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//~ return (a + b) / 2;
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//~ }
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int main(int argc, char *argv[])
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{
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int ab[][2] = {
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{3, 3},
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{3, 4},
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{4, 4},
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{4, 5},
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{5, 5},
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{5, 4},
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{4, 3},
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{-3, 3},
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{-3, 4},
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{-4, 4},
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{-4, 5},
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{-5, 5},
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{-5, 4},
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{-4, 3},
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{3, -3},
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{3, -4},
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{4, -4},
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{4, -5},
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{5, -5},
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{5, -4},
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{4, -3},
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{-3, -3},
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{-3, -4},
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{-4, -4},
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{-4, -5},
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{-5, -5},
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{-5, -4},
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{-4, -3}
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};
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size_t i;
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for (i = 0; i < sizeof(ab) / 2 / sizeof(int); i++) {
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int iavg = avg(ab[i][0],ab[i][1]);
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int davg = ((double)ab[i][0] + (double)ab[i][1]) / 2.0;
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if (iavg != davg)
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printf("avg(%d, %d) = %d (верное = %d)\n", ab[i][0], ab[i][1], avg(ab[i][0],ab[i][1]), davg);
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}
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return 0;
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}
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