int main() {
scanf("\n", &N, &M);
for (int i=0; i<N; i++) {
scanf("%d %d\n", &B[i], &P[i]);
}
prefix[0] = 0;
for (int i=0; i<=N; i++) {
prefix[i] = prefix[i-1] + Y[i-1];
}
// for (int i=0; i<=N; i++) {
// for (int j=0; j<=N; j++) {
// minscore_memo[i][j] = -1;
// }
// }
long long min_so_far = -1;
for (int x=A; x<=B; x++) {
min_so_far = min(min_so_far, minscore(x, N, 0), 0);
}
printf("%lld\n", min_so_far);
return 0;
}
void rankscore(Student *stu) //考试成绩统计
{
int type;
do
{
printf("\n请输入序号选择相应功能\n");
printf("******** 1.求课程最高分 ********\n");
printf("******** 2.求课程最低分 ********\n");
printf("******** 3.求课程平均分 ********\n");
printf("******** 0.退出 ********\n");
scanf("%d",&type);
switch(type)
{
case 0:printf("");break;
case 1:maxscore(stu);break;
case 2:minscore(stu);break;
case 3:avescore(stu);break;
default:printf("没有该选项，请重输");break;
}
}while(type!=0);
}