Cod sursa(job #41426)

Utilizator ProstuStefan-Alexandru Filip Prostu Data 28 martie 2007 11:43:55
Problema Buline Scor 80
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.73 kb
#include <cstdio>

const int NMAX = 1 << 18;

int N, S, mn, st, l;
int A[NMAX];

void read() {
	FILE *fin = fopen("buline.in", "rt");
	int i, t;

	fscanf(fin, " %d", &N);

	for (i = 0; i < N; ++i) {
		fscanf(fin, " %d %d", A + i, &t);

		if (t == 0) A[i] = -A[i];

		S += A[i];
	}

	fclose(fin);
}

void maxim_seq() {
	int i, s, cs;

	mn = st = l = 0;

	for (cs = -1, s = i = 0; i < N; ++i) {
		s += A[i];

//		printf("%d\n", s);

		if (s < mn || (s == mn && st == cs + 1))
			mn = s, st = cs + 1, l = i - cs;

		if (s > 0) s = 0, cs = i;
	}
}

void write() {
	FILE *fout = fopen("buline.out", "wt");

	fprintf(fout, "%d %d %d\n", S - mn, (st + l) % N + 1, N - l);

	fclose(fout);
}

int main() {

	read();

	maxim_seq();

	write();

	return 0;
}