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为什么(float)去掉就ac呢if(m%2==0) { printf("%.1f\n",(float)a[m/2]/2.0+(float)a[m/2-1]/2.0); } else { printf("%.1f\n",(float)a[m/2]); } return 0; } 这样就wa; if(m%2==0) { printf("%.1f\n",a[m/2]/2.0+a[m/2-1]/2.0); } else { printf("%.1f\n",(float)a[m/2]); } return 0; } 这样就ac; 疑惑啊 Followed by:
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