Created
May 5, 2015 02:45
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#include <iostream> | |
#include <vector> | |
#include <algorithm> | |
#include <cstdlib> | |
using namespace std; | |
typedef pair<int, int> jogo; | |
int main() | |
{ | |
int n, g, s, r, pontos; | |
vector <int> jogos; | |
while (cin >> n >> g) { | |
jogos.clear(); | |
pontos = 0; | |
for (int i = 0; i < n; ++i) { | |
cin >> s >> r; | |
int diff; | |
diff = s - r; | |
if (diff > 0) { | |
pontos += 3; | |
} else { | |
jogos.push_back(abs(diff)); | |
} | |
} | |
int length = jogos.size(); | |
sort(jogos.begin(), jogos.end()); | |
for (int i = 0; i < length && g > 0; i++) { | |
if (jogos[i] == 0) { | |
pontos += 3; | |
g--; | |
} else { | |
if (g > jogos[i] + 1) { | |
pontos += 3; | |
g -= jogos[i] + 1; | |
} else if (g == jogos[i] + 1) { | |
pontos += 1; | |
g = 0; | |
} | |
} | |
} | |
cout << pontos << endl; | |
} | |
return 0; | |
} | |
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