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圆周率计算

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#1 Created at ... [Delete] [Delete and Lock User]
double pi = 0;for (int i = 1; i <= 99999999; i++) {    if (i % 2 == 0) {        if (((i + 2) / 2) % 2 == 0) {            pi = pi - 1.00 / (i + 1);        } else {            pi = pi + 1.00 / (i + 1);        }    }}pi = (1+pi)*4;System.out.println(pi);

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