답안 #25123

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
25123	2017-06-20T07:15:59 Z	김동현(#1052)	Sterilizing Spray (JOI15_sterilizing)	C++14	컴파일 오류	0 ms	0 KB

sterilizing

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

const int MX = 100000, B = 50;
int n, q, K;

struct Buc{
	int a[B], c, nc;
	ll s;
	void ch(int x, int v){ s -= a[x]; a[x] = v; s += a[x]; }
	void dv(int x){ s -= a[x]; a[x] /= K; s += a[x]; }
	ll rec(){
		while(c <= 30 && c < nc){
			int fl = 0;
			for(int i = 0; i < B; i++){
				if(a[i]){
					dv(i);
					fl = 1;
				}
			}
			if(!fl) break;
			c++;
		}
		if(!fl) c = nc = 0;
		return s;
	}
	void rn(){
		rec();
		c = nc = 0;
	}
};

Buc a[MX / B + 1];

int main(){
	scanf("%d%d%d", &n, &q, &K);
	for(int i = 0; i < n; i++){
		scanf("%d", a[i / B].a + (i % B));
		a[i / B].s += a[i / B].a[i % B];
	}
	for(int t, x, y; q--; ){
		scanf("%d%d%d", &t, &x, &y);
		if(t == 1){
			x--;
			a[x / B].rn();
			a[x / B].ch(x % B, y);
		}
		else if(t == 2){
			x--; y--;
			if(x % B) a[x / B].rn();
			for(; x <= y && x % B; x++) a[x / B].dv(x % B);
			for(; x + B <= y; x += B) a[x / B].nc++;
			if(x <= y) a[x / B].rn();
			for(; x <= y; x++) a[x / B].dv(x % B);
		}
		else{
			x--; y--;
			ll ans = 0;
			if(x % B) a[x / B].rec(); 
			for(; x <= y && x % B; x++) ans += a[x / B].a[x % B];
			for(; x + B <= y; x += B) ans += a[x / B].rec();
			if(x <= y) a[x / B].rec();
			for(; x <= y; x++) ans += a[x / B].a[x % B];
			printf("%lld\n", ans);
		}
	}
}

Compilation message

sterilizing.cpp: In member function 'll Buc::rec()':
sterilizing.cpp:25:7: error: 'fl' was not declared in this scope
   if(!fl) c = nc = 0;
       ^
sterilizing.cpp: In function 'int main()':
sterilizing.cpp:37:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d", &n, &q, &K);
                             ^
sterilizing.cpp:39:36: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", a[i / B].a + (i % B));
                                    ^
sterilizing.cpp:43:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d%d", &t, &x, &y);
                              ^