제출 #483209

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
483209		keertan	Global Warming (CEOI18_glo)	C++17	0 / 100	94 ms	15940 KiB

glo

#include <cstdio>
#include <vector>
#include <algorithm>
using namespace std;
typedef pair<long long, long long> pii;
int N;
vector<pii> candies;
vector<long long> wagons;
vector<pair<pii, int> > output;
int main() {
scanf("%d", &N);
for (int i = 0; i < N; i++) {
long long p, t;
scanf("%lld%lld", &p, &t);
candies.push_back(pii(p + t, t - p));
}
sort(candies.begin(), candies.end());
for (int i = 0; i < N; i++) {
long long a = candies[i].first, b = -candies[i].second;
int pos = lower_bound(wagons.begin(), wagons.end(), b) - wagons.begin();
if (pos == (int) wagons.size()) {
wagons.push_back(b);
} else {
wagons[pos] = b;
}
output.push_back(make_pair(pii((a + b) / 2, (a - b) / 2), pos + 1));
}
printf("%d\n", wagons.size());
for (int i = 0; i < N; i++) {
printf("%lld %lld %d\n", output[i].first.first, output[i].first.second, output[i].second);
}
return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

glo.cpp: In function 'int main()':
glo.cpp:28:10: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wformat=]
   28 | printf("%d\n", wagons.size());
      |         ~^     ~~~~~~~~~~~~~
      |          |                |
      |          int              std::vector<long long int>::size_type {aka long unsigned int}
      |         %ld
glo.cpp:11:6: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 | scanf("%d", &N);
      | ~~~~~^~~~~~~~~~
glo.cpp:14:6: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 | scanf("%lld%lld", &p, &t);
      | ~~~~~^~~~~~~~~~~~~~~~~~~~

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