제출 #680234

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
680234		Dan4Life	미술 수업 (IOI13_artclass)	C++17	2 / 100	84 ms	3992 KiB

artclass

#include "artclass.h"
#include <bits/stdc++.h>
using namespace std;

int avg(int a[][500], int y1=0, int x1=0, int y2=500, int x2=500){
	int tot = 0;
	for(int i = y1; i < y2; i++)
		for(int j = x1; j < x2; j++)
			tot+=a[i][j];
	return tot/((x2-x1+1)*(y2-y1+1));
}

int cnt(int a[][500], int b[][500], int c[][500], int thl=0, int thr=255, int y1=0, int x1=0, int y2=500, int x2=500){
	int tot = 0, x;
	for(int i = y1; i < y2; i++)
		for(int j = x1; j < x2; j++)
			x = (a[i][j]+b[i][j]+c[i][j])/3, tot+=(x>=thl and x<=thr);
	return tot;
}

int cnt(int a[][500], int thl=0, int thr=255, int y1=0, int x1=0, int y2=500, int x2=500){
	int tot = 0;
	for(int i = y1; i < y2; i++)
		for(int j = x1; j < x2; j++)
			tot+=(a[i][j]>=thl and a[i][j]<=thr);
	return tot;
}

int style(int H, int W, int R[500][500], int G[500][500], int B[500][500]) {
	int r = avg(R), g = avg(G), b = avg(B);
	int th = 125, nth = 500*500/3, nth2 = 430*420;
	
    if(r>=200 and g>=200 and b>=200) return 1;
    if(avg(G,150)>=th) return 2;
    if(cnt(B,50,170)>=nth2) return 4;
    if(r>=th and g>=th/2 and b<th) return 3;
    return rand()%3+2;
}

컴파일 시 표준 에러 (stderr) 메시지

artclass.cpp: In function 'int style(int, int, int (*)[500], int (*)[500], int (*)[500])':
artclass.cpp:31:16: warning: unused variable 'nth' [-Wunused-variable]
   31 |  int th = 125, nth = 500*500/3, nth2 = 430*420;
      |                ^~~

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