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0_0_36871711_28135.cpp
0_0_36871711_28135.cpp(14) : error C2668: “ceil”: 对重载函数的调用不明确
        VC2013\INCLUDE\math.h(1163): 可能是“long double ceil(long double) throw()”
        VC2013\INCLUDE\math.h(1047): 或       “float ceil(float) throw()”
        VC2013\INCLUDE\math.h(531): 或       “double ceil(double)”
        尝试匹配参数列表“(int)”时
0_0_36871711_28135.cpp(15) : error C2668: “ceil”: 对重载函数的调用不明确
        VC2013\INCLUDE\math.h(1163): 可能是“long double ceil(long double) throw()”
        VC2013\INCLUDE\math.h(1047): 或       “float ceil(float) throw()”
        VC2013\INCLUDE\math.h(531): 或       “double ceil(double)”
        尝试匹配参数列表“(int)”时
0_0_36871711_28135.cpp(16) : error C2668: “ceil”: 对重载函数的调用不明确
        VC2013\INCLUDE\math.h(1163): 可能是“long double ceil(long double) throw()”
        VC2013\INCLUDE\math.h(1047): 或       “float ceil(float) throw()”
        VC2013\INCLUDE\math.h(531): 或       “double ceil(double)”
        尝试匹配参数列表“(int)”时