提出 #574621

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ソースコード 拡げる

#include <stdio.h>
#include <math.h>

double ExchangeHourTo360(int hour, int min)
{
    double angle = (double) hour * 360.0F / 12.0F + (double) min * 30.0F / 60.0F;
    while (angle > 360.0F) {
        angle -= 360.0F;
    }
    return  angle;
}

double ExchangeMinTo360(int min)
{
    return (double) min * 360.0F / 60.0F;
}

int main(int argc, char **argv)
{
    int a, b;
    double angle;
    
    scanf("%d %d", &a, &b);
    angle = fabs(ExchangeHourTo360(a, b) - ExchangeMinTo360(b));
    printf("%.1f\n", (angle > 180.0F) ? 360.0F - angle : angle);

    return 0;
}

提出情報

コンパイルエラー

./Main.cpp: In function ‘int main(int, char**)’:
./Main.cpp:23:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &a, &b);
                           ^

ジャッジ結果