0_0_5346444_15339.c 0_0_5346444_15339.c(17) : error C2198: "qsort" : ???????????????? 0_0_5346444_15339.c(19) : error C2198: "qsort" : ???????????????? 0_0_5346444_15339.c(30) : error C2198: "qsort" : ????????????????