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View Compilation Error

0_0_3280763_30833\Main.java:10: 找不到符号
符号: 变量 cin
位置: 类 Main
        int t=cin.nextInt();
              ^
0_0_3280763_30833\Main.java:13: 需要数组,但找到 java.math.BigInteger
                dp[i][j][k]=new BigInteger("0");
                        ^
0_0_3280763_30833\Main.java:26: 无法将 java.math.BigInteger 中的 multiply(java.math.BigInteger) 应用于 (int)
			dp[i][j]=s[0].multiply(j);
			             ^
0_0_3280763_30833\Main.java:29: 无法将 java.math.BigInteger 中的 multiply(java.math.BigInteger) 应用于 (int)
		dp[i][j]=dp[i-1][j-1].multiply(j);
		                     ^
0_0_3280763_30833\Main.java:34: 找不到符号
符号: 变量 cin
位置: 类 Main
            int n=cin.nextInt();
                  ^
5 错误


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