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1049.cpp
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38 lines (32 loc) · 811 Bytes
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#include<iostream>
using namespace std;
int main() {
int N;
int M;
cin >> N >> M;
int arr[101][2];
int packageMin = 1000000;
int perItemMin = 1000000;
for (int i = 0; i < M; i++) {
cin >> arr[i][0] >> arr[i][1];
if (arr[i][0] < packageMin)
packageMin = arr[i][0];
if (arr[i][1] < perItemMin)
perItemMin = arr[i][1];
}
if (packageMin < perItemMin*6) {
int count = N / 6;
int price = count * packageMin;
if (packageMin < perItemMin * (N % 6)) {
price += packageMin;
}
else {
price += (N % 6) * perItemMin;
}
cout << price;
}
else {
int price = N * perItemMin;
cout << price;
}
}