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8998.c
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| #include <stdio.h>
#include <memory.h>
#include <stdlib.h>
#define gc() getchar_unlocked()
int fRI() {
int ret = 0, N = gc();
for (; 0x30>N || N>0x3A; N = gc());
for (; 0x30 <= N && N <= 0x3A; N = gc()) ret = (ret << 3) + (ret << 1) + (N & 0b1111);
return ret;
}
struct assign {
int D;
int T;
};
struct assign ass[1000000];
struct assign sorted[1000000];
void Merge(int left, int mid, int right) {
int L = left, R = mid + 1, Index = 0;
while (L <= mid && R <= right) {
if (ass[L].D > ass[R].D) sorted[Index++] = ass[L++];
else sorted[Index++] = ass[R++];
}
if (L <= mid)
for (; L <= mid;)
sorted[Index++] = ass[L++];
else
for (; R <= right;)
sorted[Index++] = ass[R++];
for (Index = left; Index <= right; Index++)
ass[Index] = sorted[Index - left];
}
void MergeSort(int left, int right) {
if (left < right) {
int mid = (left + right) / 2;
MergeSort(left, mid);
MergeSort(mid + 1, right);
Merge(left, mid, right);
}
}
void sort(int l, int r) {
register int left = l;
register int right = r;
register int pivot = ass[(left + right)>>1].D;
struct assign temp;
do {
while (ass[left].D > pivot&&left<=right) ++left;
while (ass[right].D < pivot&&left <= right) --right;
if (left <= right) {
memcpy(&temp, &ass[left], sizeof(struct assign));
memcpy(&ass[left], &ass[right], sizeof(struct assign));
memcpy(&ass[right], &temp, sizeof(struct assign));
++left;
--right;
}
} while (left <= right);
if (l < right) sort(l, right);
if (r > left) sort(left, r);
}
int compare(const void *A, const void *B) {
return *(int*) A > *(int*)B ? -1 : 1;
}
int main(int argc, char** argv){
register int T = fRI()+1, tc = 0, N, ans, i;
while (--T) {
N = fRI();
for (i = 0; i < N; ++i)
ass[i].T = fRI(), ass[i].D = fRI();
sort(0, N-1);
ans = ass[0].D - ass[0].T;
for (i = 1; i < N; ++i)
ans > ass[i].D ? (ans = ass[i].D - ass[i].T) : (ans -= ass[i].T);
printf("#%d %d\n",++tc, ans);
}
}
|
