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27 changes: 27 additions & 0 deletions leetcode3/정진영/1665. Minimum Initial Energy to Finish Tasks
Original file line number Diff line number Diff line change
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/**
* @param {number[][]} tasks
* @return {number}
*/

// 시작 조건: 실제 소모량보다 까다로운 작업 먼저 처리위해 // minimum - actual 이 큰 순서대로 청렬
// 각 작업 시작 시 필요한 초기에너지 계산
// 그리디 + 정렬
// 시간복잡도: O(n log n)
var minimumEffort = function(tasks) {
tasks.sort((a, b) => {
return (b[1] - b[0]) - (a[1] - a[0]);
});

let spent = 0;
let answer = 0;

for (let i = 0; i < tasks.length; i++) {
const actual = tasks[i][0];
const minimum = tasks[i][1];

answer = Math.max(answer, spent + minimum);
spent += actual;
}

return answer;
};
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