Submission #5494756

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Source Code Expand

#include <stdio.h>

int main(void){
    double direction;
    double windLevel;
    double limit = 33.75;  //22.5
    int i, k, n;
    char order[100];
    char tableDirection[16][5] = {"N", "NNE", "NE", "ENE", "E", "ESE", "SE", "SSE",
                                  "S", "SSW", "SW", "WSW", "W", "WNW", "NW", "NNW"};
    double tableWindLevel[12] = {0, 0.2, 1.5, 3.3, 5.4, 7.9, 10.7, 13.8, 17.1, 20.7, 24.4, 28.4};
    
    fgets(order, 100, stdin);
    sscanf(order, "%lf %lf", &direction, &windLevel);
    
    direction /= 10;
    windLevel /= 60;
    windLevel *= 10;
    windLevel += 0.5;
    n = (int)windLevel;
    windLevel = n;
    windLevel /= 10;
    for(i = 1; i < 16; i++){
        if(11.25 <= direction && direction < limit){
            break;
        }
        limit += 22.5;
    }
    
    for(k = 0; k < 12; k++){
        if(k == 11){
            break;
        }
        if(tableWindLevel[k] <= windLevel && windLevel <= tableWindLevel[k+1]){
            break;
        }
    }
    if(k == 11 && 32.7 <= windLevel){
        k = 12;
    }
    if(i == 16){
        i = 0;
    }
    if(k == 0){
        printf("C 0\n");
    }else{
        printf("%s %d\n", tableDirection[i], k);
    }
    return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:14:5: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result]
     fgets(order, 100, stdin);
     ^

Judge Result