Submission #1155637

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Source Code Expand

#include<iostream>
#include<cstdio>
#include<string>
#include<algorithm>
#include<vector>
#include<list>
#include<map>
#include<set>
#include<unordered_map>
#include<unordered_set>
using namespace std;

int imos[300001];
int ruisekiWA[300001];
int x[100000], y[100000];
signed main() {
	int a, b; scanf("%d%d", &a, &b);
	for (int c = 0; c < b; c++) {
		int d, e; scanf("%d%d", &d, &e); d--;
		x[c] = d; y[c] = e;
		imos[d]++; imos[e]--;
	}
	int c = 0;
	for (int d = 0; d < a; d++) {
		c += imos[d];
		imos[d] = c;
	}
	for (int d = 1; d <= a; d++) {
		ruisekiWA[d] = ruisekiWA[d - 1];
		if (imos[d - 1] == 1)ruisekiWA[d]++;
	}
	vector<int>V;
	for (int i = 0; i < b; i++) {
		if (ruisekiWA[y[i]] - ruisekiWA[x[i]] == 0)V.push_back(i + 1);
	}
	printf("%d\n", V.size());
	for (int i : V) {
		printf("%d\n", i);
	}
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:36:25: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘std::vector<int>::size_type {aka long unsigned int}’ [-Wformat=]
  printf("%d\n", V.size());
                         ^
./Main.cpp:17:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  int a, b; scanf("%d%d", &a, &b);
                                 ^
./Main.cpp:19:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   int d, e; scanf("%d%d", &d, &e); d--;
                                  ^

Judge Result