[Icpc] zoj 1037 Gridland （water C++ / Java）

#include <iostream>
#include <cstdio>
#include <cstring>
#include <string>
#include <cstdlib>
#include <cmath>

using std::cin;
using std::cout;
using std::endl;
using std::string;

typedef string String;

int main() {
int T;
scanf("%d", &T);
for (int i = 1; i <= T; i++) {
int a, b;
scanf("%d%d", &a, &b);
printf("Scenario #%d:\n", i);
if (((a * b) & 0x1) == 0) {
printf("%.2f\n", (double)(a*b));
}
else {
printf("%.2f\n", (double)(a*b) + 0.41);
}
printf("\n");
}
return 0;
}

import java.util.*;

public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int T = in.nextInt();
for (int i = 1; i <= T; i++) {
int a = in.nextInt();
int b = in.nextInt();
System.out.printf("Scenario #%d:\n", i);
if ((a * b) % 2 == 0) {
System.out.printf("%.2f\n", (double)(a*b));
}
else {
System.out.printf("%.2f\n", (double)(a*b - 1) + 1.41);
}
System.out.println();
}
}
}