题解 | #合并表记录#
合并表记录
https://www.nowcoder.com/practice/de044e89123f4a7482bd2b214a685201
package main
import (
"fmt"
"sort"
)
func main() {
var n int
fmt.Scan(&n)
if n <= 0 {
return
}
m := make(map[int]int)
for i := 0; i < n; i++ {
var k, v int
fmt.Scan(&k)
fmt.Scan(&v)
m[k] += v
}
//排序并按照顺序输出
var key []int
for k := range m {
key = append(key, k)
}
sort.Ints(key)
for _, v := range key {
fmt.Println(v, m[v])
}
}
