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vector_STL_楼主2024/10/23 23:02
#include<iostream>
#include<algorithm>
#include<cmath>
using namespace std;
#define int long long

signed main() {
	int a;
	cin >> a;
	int b[a];
	string s[a];
	for (int i = 0; i < a; i++) {
		cin >> b[i];
		getline(cin,s[i]);
	}
	for (int i = 0; i < a; i++) {
		if (s[i] == " km = ? m") {
			cout << b[i] << " km = " << b[i] * 1000 << " m     \n";
		} else if (s[i] == " km = ? mm") {
			cout << b[i] << " km = " << b[i] * 1000000 << " mm     \n";
		} else if (s[i] == " m = ? mm") {
			cout << b[i] << " m = " << b[i] * 1000 << " mm     \n";
		} else if (s[i] == " kg = ? mg") {
			cout << b[i] << " kg = " << b[i] * 1000000 << " mg     \n";
		} else if (s[i] == " kg = ? g") {
			cout << b[i] << " kg = " << b[i] * 1000 << " g     \n";
		} else if (s[i] == " g = ? mg") {
			cout << b[i] << " g = " << b[i] * 1000 << " mg     \n";
		}
	}
}
2024/10/23 23:02
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