Created
January 9, 2021 16:13
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BOJ 1106 hotel
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#include <cstdio> | |
#include <iostream> | |
#include <vector> | |
#include <algorithm> | |
#include <map> | |
using namespace std; | |
using ull = long long int; | |
const int INF = 87654321; | |
int d[2001]; | |
int main() | |
{ | |
ios_base::sync_with_stdio(false); | |
cin.tie(nullptr); | |
int n, m; | |
cin >> n >> m; | |
fill_n(d, 2001, INF); | |
d[0] = 0; | |
for (int i = 0; i < m; i++) { | |
int cost, h; | |
cin >> cost >> h; | |
for (int j = 0; j + h <= 2000; j++) { | |
if (d[j] == INF) continue; | |
d[j + h] = min(d[j + h], d[j] + cost); | |
} | |
} | |
int ans = INF; | |
for (int i = n; i <= 2000; i++) { | |
ans = min(d[i], ans); | |
} | |
cout << ans << endl; | |
return 0; | |
} |
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