제출 #58733

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
58733		leejseo	Foehn Phenomena (JOI17_foehn_phenomena)	C++98	30 / 100	1088 ms	3040 KiB

foehn_phenomena

#include <bits/stdc++.h>
using namespace std;
typedef long long lld;
int N, Q;
lld S, T, A[200001];

void input(){
    scanf("%d%d%lld%lld", &N, &Q, &S, &T);
    for (int i=0; i<=N; i++) scanf("%lld", &A[i]);
}

void update(int l, int r, lld val){
    for (int i=l; i<=r; i++) A[i] += val;
}

lld get_sum(){
    lld ans = 0;
    for (int i=1; i<=N; i++) ans += (A[i-1] < A[i] ? S*(A[i-1]-A[i]) : T*(A[i-1]-A[i]));
    return ans;
}

int main(){
    input();
    int l, r;
    lld val;
    while (Q--){
	scanf("%d%d%lld", &l, &r, &val);
	update(l, r, val);
	printf("%lld\n", get_sum());
    }
}

컴파일 시 표준 에러 (stderr) 메시지

foehn_phenomena.cpp: In function 'void input()':
foehn_phenomena.cpp:8:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%lld%lld", &N, &Q, &S, &T);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foehn_phenomena.cpp:9:35: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for (int i=0; i<=N; i++) scanf("%lld", &A[i]);
                              ~~~~~^~~~~~~~~~~~~~~
foehn_phenomena.cpp: In function 'int main()':
foehn_phenomena.cpp:27:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%lld", &l, &r, &val);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 30 / 30
• Subtask 2: 0 / 10
• Subtask 3: 0 / 60