[BOJ 6236] 용돈 관리

src/week6/BOJ6236/BOJ6236_V1.cpp

@@ -0,0 +1,54 @@
+#include <bits/stdc++.h>
+using namespace std;
+int N,M;
+vector<int> inp;
+bool check_available(int money) {
+    int curr = money;
+    int cnt = 1;
+    for (int i=0; i<N; i++) {
+        curr -= inp[i];
+        if (curr < 0) {
+            cnt++;
+            curr = money-inp[i];
+        }
+
+        if (cnt > M) return false;
+    }
+    return true;
+}
+int main() {
+
+    ios_base::sync_with_stdio(false);
+    cin.tie(nullptr);
+    cout.tie(nullptr);
+
+    cin >> N >> M;
+    int low=INT_MIN,high,mid;
+
+    int sum = 0;
+    for (int i=0; i<N; i++) {
+        int money;
+        cin >> money;
+        inp.push_back(money);
+        low = max(low,money);
+        sum += money;
+    }
+    high = sum;
+
+    int ret = high;
+    while(low <= high) {
+        mid = (low + high) / 2;
+
+        if (check_available(mid)) {
+            high = mid - 1;
+            ret = mid;
+        } else {
+            low = mid + 1;
+        }
+    }
+
+    cout << ret << '\n';
+
+
+    return 0;
+}