Submission #119081

#	Time	Username	Problem	Language	Result	Execution time	Memory
119081		Bruteforceman	Cambridge (info1cup18_cambridge)	C++11	30 / 100	2067 ms	1984 KiB

cambridge

#include "bits/stdc++.h"
using namespace std;
typedef pair <int, int> pii;
int t[100010], d[100010];
int opt[100010];

int query(int x, int y) {
	vector <pii> v;
	for(int i = x; i <= y; i++) {
		v.emplace_back(d[i], t[i]);
	}
	sort(v.begin(), v.end());
	long long sum = 0;
	for(int i = 0; i < v.size(); i++) {
		sum += v[i].second;
		if(sum >= v[i].first) {
			return false;
		}
	}
	return true;
}

int main(int argc, char const *argv[])
{
	int n, m;
	scanf("%d %d", &n, &m);
	for(int i = 1; i <= n; i++) {
		scanf("%d %d", &t[i], &d[i]);
	}
	int cur = n;
	for(int i = n; i >= 1; i--) {
		while(cur >= i && !query(i, cur)) {
			--cur;
		}
		opt[i] = cur;
	}
	while(m--) {
		int p, q;
		scanf("%d %d", &p, &q);
		printf("%d\n", (opt[p] >= q));
	}
	return 0;
}

Compilation message (stderr)

cambridge.cpp: In function 'int query(int, int)':
cambridge.cpp:14:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < v.size(); i++) {
                 ~~^~~~~~~~~~
cambridge.cpp: In function 'int main(int, const char**)':
cambridge.cpp:26:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &m);
  ~~~~~^~~~~~~~~~~~~~~~~
cambridge.cpp:28:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &t[i], &d[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~
cambridge.cpp:39:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &p, &q);
   ~~~~~^~~~~~~~~~~~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 0 / 25
• Subtask 3: 15 / 15
• Subtask 4: 0 / 45