제출 #164039

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
164039	2019-11-17 06:42:53	xtalxlr	초음속철도 (OJUZ11_rail)	C++17	100 / 100	914 ms	133044 KiB

rail

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#include <cstdio>
#include <algorithm>
#include <utility>
#include <vector>
using namespace std;
typedef pair<int, int> pii;
typedef long long ll;
const ll mod = 1000000007LL;
const int N = 2000050;
ll mul[4*N], tot[4*N];
void init() {
    for (int i = 0; i < 4*N; i++) {
        mul[i] = 1LL;
        tot[i] = 0LL;
    }
}
void propagate(int i, int st, int ed) {
    tot[i] = (tot[i] * mul[i]) % mod;
    int li = 2*i+1, ri = 2*i+2;
    if (ed - st > 1) {
        mul[li] = mul[li] * mul[i] % mod;
        mul[ri] = mul[ri] * mul[i] % mod;
    }
    mul[i] = 1LL;
}
void q_mul(ll val, int q_st, int q_ed, int i=0, int st=0, int ed=N) {
 
 
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컴파일 시 표준 에러 (stderr) 메시지

rail.cpp: In function 'int main()':
rail.cpp:82:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &last, &n);
     ~~~~~^~~~~~~~~~~~~~~~~~~~
rail.cpp:88:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d", &s, &e);
         ~~~~~^~~~~~~~~~~~~~~~~

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• Subtask 2: 8 / 8
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