\uc791\uc131\uc790: \uc870\uad11\ud615<\/p>\n
\uc791\uc131\uc77c: 2024\ub144 11\uc6d4 26\uc77c<\/p>\n<\/header>\n \n \ub3d9\uc804\uc73c\ub85c \uac70\uc2ac\ub7ec \uc904 \uc218 \uc788\ub294 \ucd5c\uc18c \uac1c\uc218\ub97c \uacc4\uc0b0\ud558\ub294 \ubb38\uc81c\uc785\ub2c8\ub2e4. \uc5ec\ub7ec\ubd84\uc740 \uc8fc\uc5b4\uc9c4 \ub3d9\uc804\uc758 \uc885\ub958\uc640 \ucd1d\uc561\uc744 \uae30\ubc18\uc73c\ub85c \ud574\uc11c \ub3d9\uc804\uc744 \ucd5c\uc18c \uac1c\uc218\ub85c \uc0ac\uc6a9\ud558\uc5ec \ucd1d\uc561\uc744 \ub9cc\ub4dc\ub294 \ubc29\ubc95\uc744 \ucc3e\uc544\uc57c \ud569\ub2c8\ub2e4. \ub3d9\uc804\uc758 \uc885\ub958\ub294 \ubb34\ud55c\ud788 \ub9ce\ub2e4\uace0 \uac00\uc815\ud569\ub2c8\ub2e4.\n <\/p>\n \n \uc608\ub97c \ub4e4\uc5b4, \ub3d9\uc804\uc758 \uc885\ub958\uac00 {1, 5, 10, 25} \ub3d9\uc804\uc774 \uc788\uace0, \ub9cc\ub4e4\uc5b4\uc57c \ud558\ub294 \ucd1d\uc561\uc774 63\uc77c \ub54c, \uc5ec\ub7ec\ubd84\uc740 \ucd5c\uc18c \uba87 \uac1c\uc758 \ub3d9\uc804\uc744 \uc0ac\uc6a9\ud574\uc57c \ud560\uc9c0\ub97c \ucc3e\uc544\uc57c \ud569\ub2c8\ub2e4.\n <\/p>\n \n \uc774 \ubb38\uc81c\ub294 \ub3d9\uc801 \ud504\ub85c\uadf8\ub798\ubc0d(Dynamic Programming) \uae30\ubc95\uc744 \uc0ac\uc6a9\ud558\uc5ec \ud574\uacb0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub3d9\uc801 \ud504\ub85c\uadf8\ub798\ubc0d\uc740 \ubb38\uc81c\ub97c \uc791\uc740 \ubd80\ubd84\ubb38\uc81c\ub85c \ub098\ub204\uace0, \uc774\ub7ec\ud55c \uc791\uc740 \ubb38\uc81c\ub4e4\uc758 \ud574\ub2f5\uc744 \uc870\ud569\ud558\uc5ec \uc804\uccb4 \ubb38\uc81c\uc758 \ud574\uacb0\ucc45\uc744 \ucc3e\uc544\uac00\ub294 \ubc29\uc2dd\uc785\ub2c8\ub2e4. \uc774 \ubb38\uc81c\ub97c \ud480\uae30 \uc704\ud574 \ub2e4\uc74c\uacfc \uac19\uc740 \ub2e8\uacc4\ub97c \ub530\ub974\uaca0\uc2b5\ub2c8\ub2e4.\n <\/p>\n \n \uc774 \ucf54\ub4dc\ub294 \uc8fc\uc5b4\uc9c4 coinValues \ubc30\uc5f4\uacfc amount\ub97c \uac00\uc9c0\uace0 DP \ud14c\uc774\ube14\uc744 \uc791\uc131\ud558\uace0, \ucd5c\uc18c \ub3d9\uc804\uc758 \uac1c\uc218\ub97c \uacc4\uc0b0\ud569\ub2c8\ub2e4.\n <\/p>\n<\/section>\n \n \uc704\uc758 \ucf54\ub4dc\ub294 \uc5ec\ub7ec \ub2e8\uacc4\ub85c \uad6c\uc131\ub418\uc5b4 \uc788\uc73c\uba70, \uc774\ub97c \ud1b5\ud574 \ub3d9\uc804\uc758 \uac1c\uc218\ub97c \ucd5c\uc18c\ud654\ud558\ub294 \ubc29\ubc95\uc744 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.\n <\/p>\n \n \n \n \ub9c8\uc9c0\ub9c9\uc73c\ub85c \uc785\ub825:<\/strong> coinValues = [1, 5, 10, 25], amount = 63<\/p>\n \ucd9c\ub825:<\/strong> 6<\/p>\n \ud574\uc124:<\/strong> 25, 25, 10, 1, 1, 1\ub85c \ucd1d 6\uac1c\uc758 \ub3d9\uc804\uc744 \uc0ac\uc6a9\ud558\uc5ec 63\uc744 \ub9cc\ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n \uc785\ub825:<\/strong> coinValues = [2], amount = 3<\/p>\n \ucd9c\ub825:<\/strong> -1<\/p>\n \ud574\uc124:<\/strong> 2\ub9cc \uc0ac\uc6a9\ud574\uc11c\ub294 3\uc744 \ub9cc\ub4e4 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n \uc785\ub825:<\/strong> coinValues = [1], amount = 0<\/p>\n \ucd9c\ub825:<\/strong> 0<\/p>\n \ud574\uc124:<\/strong> 0\uc6d0\uc744 \ub9cc\ub4e4\uae30 \uc704\ud574\uc11c \ud544\uc694\ud55c \ub3d9\uc804\uc740 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n<\/section>\n \n \uc774 \uc54c\uace0\ub9ac\uc998\uc758 \uc2dc\uac04 \ubcf5\uc7a1\ub3c4\ub294 O(n * m)\uc785\ub2c8\ub2e4. \uc5ec\uae30\uc11c n\uc740 \ub3d9\uc804\uc758 \uc885\ub958 \uc218, m\uc740 \ubaa9\ud45c \uc790\uae08\uc785\ub2c8\ub2e4. DP \ud14c\uc774\ube14\uc744 \uc791\uc131\ud558\uace0 \uac31\uc2e0\ud558\ub294 \ub370 O(m) \uc791\uc5c5\uc774 \ub3d9\uc804 \uc218\ub9cc\ud07c \ubc18\ubcf5\ub418\ubbc0\ub85c \uc774 \ubcf5\uc7a1\ub3c4\ub97c \uac00\uc9d1\ub2c8\ub2e4. \n \uc774 \uae00\uc5d0\uc11c\ub294 \uc790\ubc14\uc2a4\ud06c\ub9bd\ud2b8\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub3d9\uc804 \uac1c\uc218\uc758 \ucd5c\uc19f\uac12\uc744 \uad6c\ud558\ub294 \ubb38\uc81c\ub97c \ub3d9\uc801 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \ud1b5\ud574 \ud574\uacb0\ud558\ub294 \ubc29\ubc95\uc744 \ub2e4\ub8e8\uc5c8\uc2b5\ub2c8\ub2e4. <\/body><\/p>\n","protected":false},"excerpt":{"rendered":"\ubb38\uc81c \uc124\uba85<\/h2>\n
\uc785\ub825<\/h3>\n
\n
\ucd9c\ub825<\/h3>\n
\n
\ubb38\uc81c \uc811\uadfc \ubc29\uc2dd<\/h2>\n
\n
\uc790\ubc14\uc2a4\ud06c\ub9bd\ud2b8 \ucf54\ub4dc \uad6c\ud604<\/h2>\n
\n
\nfunction coinChange(coinValues, amount) {\n \/\/ DP \ud14c\uc774\ube14 \ucd08\uae30\ud654\n const dp = Array(amount + 1).fill(Infinity);\n dp[0] = 0; \/\/ 0\uc6d0\uc744 \ub9cc\ub4e4\uae30 \uc704\ud55c \ub3d9\uc804\uc758 \uc218\ub294 0\n\n \/\/ \uac01 \ub3d9\uc804\uc744 \ud558\ub098\uc529 \ud655\uc778\n for (let coin of coinValues) {\n for (let j = coin; j <= amount; j++) {\n dp[j] = Math.min(dp[j], dp[j - coin] + 1);\n }\n }\n\n \/\/ \uacb0\uacfc \ubc18\ud658\n return dp[amount] === Infinity ? -1 : dp[amount];\n}\n<\/code>\n <\/pre>\n\ub3d9\uc791 \uacfc\uc815 \uc124\uba85<\/h2>\n
1\ub2e8\uacc4: DP \ud14c\uc774\ube14 \ucd08\uae30\ud654<\/h3>\n
const dp = Array(amount + 1).fill(Infinity);<\/code> \uc774 \ucf54\ub4dc\ub294 \uc77c\uc815\ud55c \uae38\uc774\uc758 \ubc30\uc5f4\uc744 \uc0dd\uc131\ud558\uba70 \ubaa8\ub4e0 \uac12\uc744 \ubb34\ud55c\ub300\ub85c \ucd08\uae30\ud654\ud569\ub2c8\ub2e4.
\n \uc774\ud6c4 dp[0] = 0;<\/code> \uc73c\ub85c 0\uc6d0\uc744 \ub9cc\ub4dc\ub294 \ub370 \ud544\uc694\ud55c \ub3d9\uc804 \uac1c\uc218\ub97c 0\uc73c\ub85c \uc124\uc815\ud569\ub2c8\ub2e4.\n <\/p>\n2\ub2e8\uacc4: \uac01 \ub3d9\uc804\uc73c\ub85c \uae08\uc561 \uac31\uc2e0<\/h3>\n
for (let coin of coinValues)<\/code> \uad6c\ubb38\uc73c\ub85c \uac01 \ub3d9\uc804\uc5d0 \ub300\ud574 \ubc18\ubcf5\ud558\uba70 \uac00\ub2a5\ud55c \uae08\uc561\uc744 \uacc4\uc0b0\ud569\ub2c8\ub2e4.
\n \uc911\ucca9\ub41c for<\/code> \ubb38\uc5d0\uc11c dp[j] = Math.min(dp[j], dp[j - coin] + 1);<\/code>\ub97c \ud1b5\ud574 \uac01 \uae08\uc561\uc5d0 \ub300\ud55c \ucd5c\uc18c \ub3d9\uc804 \uac1c\uc218\ub97c \uac31\uc2e0\ud569\ub2c8\ub2e4.\n <\/p>\n3\ub2e8\uacc4: \uacb0\uacfc \ubc18\ud658<\/h3>\n
return dp[amount] === Infinity ? -1 : dp[amount];<\/code>\ub97c \ud1b5\ud574 \ud574\ub2f9 \uae08\uc561\uc744 \ub9cc\ub4e4 \uc218 \uc5c6\ub294 \uacbd\uc6b0 -1\uc744 \ubc18\ud658\ud569\ub2c8\ub2e4. \ub9cc\ub4e4 \uc218 \uc788\ub294 \uacbd\uc6b0 \ucd5c\uc18c \ub3d9\uc804 \uac1c\uc218\ub97c \ubc18\ud658\ud569\ub2c8\ub2e4.\n <\/p>\n<\/section>\n\uc608\uc81c\uc640 \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4<\/h2>\n
\uc608\uc81c 1<\/h3>\n
\uc608\uc81c 2<\/h3>\n
\uc608\uc81c 3<\/h3>\n
\uc774 \ucf54\ub4dc\uc758 \uc2dc\uac04 \ubcf5\uc7a1\ub3c4\uc640 \uacf5\uac04 \ubcf5\uc7a1\ub3c4<\/h2>\n
\n \uacf5\uac04 \ubcf5\uc7a1\ub3c4\ub294 O(m)\uc785\ub2c8\ub2e4. \uc774\ub294 \ub3d9\uc804 \uac2f\uc218\uc5d0 \ub300\ud574 \ub3d9\uc801\uc73c\ub85c \uc0dd\uc131\ub41c DP \ud14c\uc774\ube14 \ub54c\ubb38\uc785\ub2c8\ub2e4.\n <\/p>\n<\/section>\n\ub9c8\ubb34\ub9ac<\/h2>\n
\n \ubb38\uc81c\ub97c \uc81c\uacf5\ud55c \ub4a4 \ub2e4\uc591\ud55c \ud574\ubc95\uacfc \ucf54\ub4dc \uad6c\ud604\uc744 \ud1b5\ud574 \uc8fc\uc81c\ub97c \uc2ec\uce35\uc801\uc73c\ub85c \uc0b4\ud3c8\uc2b5\ub2c8\ub2e4.
\n \uc774\ub7ec\ud55c \uc54c\uace0\ub9ac\uc998\uc740 \uc2e4\uc81c \uba74\uc811\uc5d0\uc11c\ub3c4 \uc790\uc8fc \ucd9c\uc81c\ub418\ubbc0\ub85c \uc798 \uc775\ud788\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.
\n \uc55e\uc73c\ub85c\uc758 \ucf54\ub529\ud14c\uc2a4\ud2b8 \uc900\ube44\uc5d0 \ub3c4\uc6c0\uc774 \ub418\uae38 \ubc14\ub78d\ub2c8\ub2e4!\n <\/p>\n<\/section>\n<\/article>\n