#include <iostream> using namespace std; int main() { cout << "n e" << endl; cout << "- -----------" << endl; double sum = 1.0; cout << 0 << " " << 1 << endl; for (int i = 1; i <= 9; i++) { int mul = 1; for (int j = i; j > 0; j--) mul *= j; sum += 1 / (double)mul; cout << i << " "; if (i<=2) cout << sum<< endl; else { printf("%.9f\n", sum); } } return 0; }
杭电OJ 1012 u Calculate e
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