|
| 1 | +## 1. Brute Force |
| 2 | + |
| 3 | +::tabs-start |
| 4 | + |
| 5 | +```python |
| 6 | +class Solution: |
| 7 | + def findContentChildren(self, g: List[int], s: List[int]) -> int: |
| 8 | + s.sort() |
| 9 | + res = 0 |
| 10 | + |
| 11 | + for i in g: |
| 12 | + minIdx = -1 |
| 13 | + for j in range(len(s)): |
| 14 | + if s[j] < i: |
| 15 | + continue |
| 16 | + |
| 17 | + if minIdx == -1 or s[minIdx] > s[j]: |
| 18 | + minIdx = j |
| 19 | + |
| 20 | + if minIdx != -1: |
| 21 | + s[minIdx] = -1 |
| 22 | + res += 1 |
| 23 | + |
| 24 | + return res |
| 25 | +``` |
| 26 | + |
| 27 | +```java |
| 28 | +public class Solution { |
| 29 | + public int findContentChildren(int[] g, int[] s) { |
| 30 | + Arrays.sort(s); |
| 31 | + int res = 0; |
| 32 | + |
| 33 | + for (int i : g) { |
| 34 | + int minIdx = -1; |
| 35 | + for (int j = 0; j < s.length; j++) { |
| 36 | + if (s[j] < i) continue; |
| 37 | + |
| 38 | + if (minIdx == -1 || s[minIdx] > s[j]) { |
| 39 | + minIdx = j; |
| 40 | + } |
| 41 | + } |
| 42 | + |
| 43 | + if (minIdx != -1) { |
| 44 | + s[minIdx] = -1; |
| 45 | + res++; |
| 46 | + } |
| 47 | + } |
| 48 | + |
| 49 | + return res; |
| 50 | + } |
| 51 | +} |
| 52 | +``` |
| 53 | + |
| 54 | +```cpp |
| 55 | +class Solution { |
| 56 | +public: |
| 57 | + int findContentChildren(vector<int>& g, vector<int>& s) { |
| 58 | + sort(s.begin(), s.end()); |
| 59 | + int res = 0; |
| 60 | + |
| 61 | + for (int i : g) { |
| 62 | + int minIdx = -1; |
| 63 | + for (int j = 0; j < s.size(); j++) { |
| 64 | + if (s[j] < i) continue; |
| 65 | + |
| 66 | + if (minIdx == -1 || s[minIdx] > s[j]) { |
| 67 | + minIdx = j; |
| 68 | + } |
| 69 | + } |
| 70 | + |
| 71 | + if (minIdx != -1) { |
| 72 | + s[minIdx] = -1; |
| 73 | + res++; |
| 74 | + } |
| 75 | + } |
| 76 | + |
| 77 | + return res; |
| 78 | + } |
| 79 | +}; |
| 80 | +``` |
| 81 | + |
| 82 | +```javascript |
| 83 | +class Solution { |
| 84 | + /** |
| 85 | + * @param {number[]} g |
| 86 | + * @param {number[]} s |
| 87 | + * @return {number} |
| 88 | + */ |
| 89 | + findContentChildren(g, s) { |
| 90 | + s.sort((a, b) => a - b); |
| 91 | + let res = 0; |
| 92 | + |
| 93 | + for (let i of g) { |
| 94 | + let minIdx = -1; |
| 95 | + for (let j = 0; j < s.length; j++) { |
| 96 | + if (s[j] < i) continue; |
| 97 | + |
| 98 | + if (minIdx === -1 || s[minIdx] > s[j]) { |
| 99 | + minIdx = j; |
| 100 | + } |
| 101 | + } |
| 102 | + |
| 103 | + if (minIdx !== -1) { |
| 104 | + s[minIdx] = -1; |
| 105 | + res++; |
| 106 | + } |
| 107 | + } |
| 108 | + |
| 109 | + return res; |
| 110 | + } |
| 111 | +} |
| 112 | +``` |
| 113 | + |
| 114 | +::tabs-end |
| 115 | + |
| 116 | +### Time & Space Complexity |
| 117 | + |
| 118 | +* Time complexity: $O(n * m + m \log m)$ |
| 119 | +* Space complexity: $O(1)$ or $O(m)$ depending on the sorting algorithm. |
| 120 | + |
| 121 | +> Where $n$ is the size of the array $g$ and $m$ is the size of the array $s$. |
| 122 | +
|
| 123 | +--- |
| 124 | + |
| 125 | +## 2. Two Pointers - I |
| 126 | + |
| 127 | +::tabs-start |
| 128 | + |
| 129 | +```python |
| 130 | +class Solution: |
| 131 | + def findContentChildren(self, g: List[int], s: List[int]) -> int: |
| 132 | + g.sort() |
| 133 | + s.sort() |
| 134 | + |
| 135 | + i = j = 0 |
| 136 | + while i < len(g): |
| 137 | + while j < len(s) and g[i] > s[j]: |
| 138 | + j += 1 |
| 139 | + if j == len(s): |
| 140 | + break |
| 141 | + i += 1 |
| 142 | + j += 1 |
| 143 | + return i |
| 144 | +``` |
| 145 | + |
| 146 | +```java |
| 147 | +public class Solution { |
| 148 | + public int findContentChildren(int[] g, int[] s) { |
| 149 | + Arrays.sort(g); |
| 150 | + Arrays.sort(s); |
| 151 | + |
| 152 | + int i = 0, j = 0; |
| 153 | + while (i < g.length) { |
| 154 | + while (j < s.length && g[i] > s[j]) { |
| 155 | + j++; |
| 156 | + } |
| 157 | + if (j == s.length) break; |
| 158 | + i++; |
| 159 | + j++; |
| 160 | + } |
| 161 | + return i; |
| 162 | + } |
| 163 | +} |
| 164 | +``` |
| 165 | + |
| 166 | +```cpp |
| 167 | +class Solution { |
| 168 | +public: |
| 169 | + int findContentChildren(vector<int>& g, vector<int>& s) { |
| 170 | + sort(g.begin(), g.end()); |
| 171 | + sort(s.begin(), s.end()); |
| 172 | + |
| 173 | + int i = 0, j = 0; |
| 174 | + while (i < g.size()) { |
| 175 | + while (j < s.size() && g[i] > s[j]) { |
| 176 | + j++; |
| 177 | + } |
| 178 | + if (j == s.size()) break; |
| 179 | + i++; |
| 180 | + j++; |
| 181 | + } |
| 182 | + return i; |
| 183 | + } |
| 184 | +}; |
| 185 | +``` |
| 186 | + |
| 187 | +```javascript |
| 188 | +class Solution { |
| 189 | + /** |
| 190 | + * @param {number[]} g |
| 191 | + * @param {number[]} s |
| 192 | + * @return {number} |
| 193 | + */ |
| 194 | + findContentChildren(g, s) { |
| 195 | + g.sort((a, b) => a - b); |
| 196 | + s.sort((a, b) => a - b); |
| 197 | + |
| 198 | + let i = 0, j = 0; |
| 199 | + while (i < g.length) { |
| 200 | + while (j < s.length && g[i] > s[j]) { |
| 201 | + j++; |
| 202 | + } |
| 203 | + if (j === s.length) break; |
| 204 | + i++; |
| 205 | + j++; |
| 206 | + } |
| 207 | + return i; |
| 208 | + } |
| 209 | +} |
| 210 | +``` |
| 211 | + |
| 212 | +::tabs-end |
| 213 | + |
| 214 | +### Time & Space Complexity |
| 215 | + |
| 216 | +* Time complexity: $O(n \log n + m \log m)$ |
| 217 | +* Space complexity: $O(1)$ or $O(n + m)$ depending on the sorting algorithm. |
| 218 | + |
| 219 | +> Where $n$ is the size of the array $g$ and $m$ is the size of the array $s$. |
| 220 | +
|
| 221 | +--- |
| 222 | + |
| 223 | +## 3. Two Pointers - II |
| 224 | + |
| 225 | +::tabs-start |
| 226 | + |
| 227 | +```python |
| 228 | +class Solution: |
| 229 | + def findContentChildren(self, g: List[int], s: List[int]) -> int: |
| 230 | + g.sort() |
| 231 | + s.sort() |
| 232 | + |
| 233 | + i = j = 0 |
| 234 | + while i < len(g) and j < len(s): |
| 235 | + if g[i] <= s[j]: |
| 236 | + i += 1 |
| 237 | + j += 1 |
| 238 | + |
| 239 | + return i |
| 240 | +``` |
| 241 | + |
| 242 | +```java |
| 243 | +public class Solution { |
| 244 | + public int findContentChildren(int[] g, int[] s) { |
| 245 | + Arrays.sort(g); |
| 246 | + Arrays.sort(s); |
| 247 | + |
| 248 | + int i = 0; |
| 249 | + for (int j = 0; i < g.length && j < s.length; j++) { |
| 250 | + if (g[i] <= s[j]) i++; |
| 251 | + } |
| 252 | + return i; |
| 253 | + } |
| 254 | +} |
| 255 | +``` |
| 256 | + |
| 257 | +```cpp |
| 258 | +class Solution { |
| 259 | +public: |
| 260 | + int findContentChildren(vector<int>& g, vector<int>& s) { |
| 261 | + sort(g.begin(), g.end()); |
| 262 | + sort(s.begin(), s.end()); |
| 263 | + |
| 264 | + int i = 0; |
| 265 | + for (int j = 0; i < g.size() && j < s.size(); j++) { |
| 266 | + if (g[i] <= s[j]) i++; |
| 267 | + } |
| 268 | + return i; |
| 269 | + } |
| 270 | +}; |
| 271 | +``` |
| 272 | + |
| 273 | +```javascript |
| 274 | +class Solution { |
| 275 | + /** |
| 276 | + * @param {number[]} g |
| 277 | + * @param {number[]} s |
| 278 | + * @return {number} |
| 279 | + */ |
| 280 | + findContentChildren(g, s) { |
| 281 | + g.sort((a, b) => a - b); |
| 282 | + s.sort((a, b) => a - b); |
| 283 | + |
| 284 | + let i = 0; |
| 285 | + for (let j = 0; i < g.length && j < s.length; j++) { |
| 286 | + if (g[i] <= s[j]) i++; |
| 287 | + } |
| 288 | + return i; |
| 289 | + } |
| 290 | +} |
| 291 | +``` |
| 292 | + |
| 293 | +::tabs-end |
| 294 | + |
| 295 | +### Time & Space Complexity |
| 296 | + |
| 297 | +* Time complexity: $O(n \log n + m \log m)$ |
| 298 | +* Space complexity: $O(1)$ or $O(n + m)$ depending on the sorting algorithm. |
| 299 | + |
| 300 | +> Where $n$ is the size of the array $g$ and $m$ is the size of the array $s$. |
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