45 lines
932 B
C
45 lines
932 B
C
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#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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int main() {
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int x;
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double precision = 1e-5;
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printf("***<2A><><EFBFBD>Jx<4A><78>(x>0)<29>p<EFBFBD>⥭<EFBFBD><E2A5AD><EFBFBD><EFBFBD>***\n");
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// <20>M<EFBFBD>ſ<EFBFBD><C5BF>J<EFBFBD>w<EFBFBD>İ<EFBFBD>
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int c;
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while ((c = getchar()) != '\n' && c != EOF);
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// <20>ϥ<EFBFBD> fgets <20>M sscanf <20><>Ū<EFBFBD><C5AA><EFBFBD><EFBFBD><EFBFBD>J
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char input[100];
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if (fgets(input, sizeof(input), stdin) == NULL) {
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printf("Ū<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>J<EFBFBD>ɵo<EFBFBD>Ϳ<EFBFBD><EFBFBD>~\n");
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return 1;
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}
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if (sscanf(input, "%d", &x) != 1 || x <= 0) {
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printf("<EFBFBD>L<EFBFBD>Ī<EFBFBD><EFBFBD><EFBFBD><EFBFBD>J<EFBFBD>C<EFBFBD>п<EFBFBD><EFBFBD>J<EFBFBD>@<40>ӥ<EFBFBD><D3A5><EFBFBD><EFBFBD>ơC\n");
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return 1;
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}
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int lower = 0, upper = x;
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double ans = sqrt(x);
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double mid;
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while (upper - lower > precision) {
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mid = (lower + upper) / 2.0;
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if (mid * mid > x) {
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upper = mid;
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} else {
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lower = mid;
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}
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}
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printf("%d<><64><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڬ<EFBFBD>%f\n", x, mid);
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printf("sqrt(%d)<29><><EFBFBD><EFBFBD><EFBFBD>G<EFBFBD><47>%f\n", x, ans);
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return 0;
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}
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