Submission #748687

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Source Code Expand

#include <stdio.h>
#include <math.h>
#include <string.h>
 
#define DEG_SPLIT		22.5
#define DEG_SPLIT_NUM	16
#define NNE				11.25
#define LENGTH			5
 
#define EPS				1e-15
 
int Search_W(double);
 
int main(void){
 
	double Deg, Dis;
	int i, W;
	char Dir[LENGTH];
 
	char str[DEG_SPLIT_NUM][LENGTH] = {
		"N", "NNE", "NE", "ENE", 
		"E", "ESE", "SE", "SSE", 
		"S", "SSW", "SW", "WSW", 
		"W", "WNW", "NW", "NNW",
	};
 
	scanf("%lf %lf", &Deg, &Dis);
 
	if( (W = Search_W(Dis) )== 0 ){
		sprintf(Dir, "%s", "C\0");
	}
	else{ 
	// 角度に戻す
		Deg *= 0.1;
		for(i=1; i < DEG_SPLIT_NUM ; i++){		
			if( (Deg >= (NNE + (DEG_SPLIT * (i-1)))) && (Deg < (NNE + (DEG_SPLIT * i)) ) ){
				strcpy(Dir, str[i]);
				break;
			}
			strcpy(Dir, str[0]);
		}
	}		
	printf("%s %d\n", Dir, W);
	return 0;
}
 

int Search_W(double dis){
	// w = 風程: 1分間に吹いた風によって動いた距離
	double w = 0.0, w_speed;
	w_speed = dis / 60.0;
	
	w_speed = (double)(int)((w_speed * 10.0) + 0.50);

	// 丸め誤差を修正?
	if	   ( ((w_speed + EPS) >= 0) && ((w_speed - EPS) <= 2) )		w = 0;
	else if( ((w_speed + EPS) >= 3) && ((w_speed - EPS) <= 15)  )	w = 1;
	else if( ((w_speed + EPS) >= 16) && ((w_speed - EPS) <= 33)  )	w = 2;
	else if( ((w_speed + EPS) >= 34) && ((w_speed - EPS) <= 54)  )	w = 3;
	else if( ((w_speed + EPS) >= 55) && ((w_speed - EPS) <= 79)  )	w = 4;
	else if( ((w_speed + EPS) >= 80) && ((w_speed - EPS) <= 107)  )	w = 5;
	else if( ((w_speed + EPS) >= 108) && ((w_speed - EPS) <= 138) )	w = 6;
	else if( ((w_speed + EPS) >= 139) && ((w_speed - EPS) <= 171) )	w = 7;
	else if( ((w_speed + EPS) >= 172) && ((w_speed - EPS) <= 207) )	w = 8;
	else if( ((w_speed + EPS) >= 208) && ((w_speed - EPS) <= 244) )	w = 9;
	else if( ((w_speed + EPS) >= 245) && ((w_speed - EPS) <= 284) )	w = 10;
	else if( ((w_speed + EPS) >= 285) && ((w_speed - EPS) <= 326) )	w = 11;
	else if( (w_speed + EPS) >= 327 )	w = 12;
	
	return (int)w;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:27:7: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]

Judge Result