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Update Solution.java

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Original file line number	Diff line number	Diff line change
`@@ -4,6 +4,10 @@ public int numRollsToTarget(int d, int f, int target) {`
`4`	`4`	`dp[0][0] = 1;`
`5`	`5`	`for (int i = 1; i <= d; ++i) {`
`6`	`6`	`for (int j = 1; j <= target; ++j) {`
	`7`	`+ // j 大于当前所有骰子的最大和,不可能满足条件`
	`8`	`+ if (j > i * f) {`
	`9`	`+ break;`
	`10`	`+ }`
`7`	`11`	`for (int k = 1; k <= f && k <= j; ++k) {`
`8`	`12`	`dp[i][j] = (dp[i][j] + dp[i - 1][j - k]) % 1000000007;`
`9`	`13`	`}`

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