SPJ 更换、撤下所有题解

#include "testlib.h"
int a[505], s[505], mp[5005];
int main(int argc, char *argv[]) {
    registerTestlibCmd(argc, argv);
    int t = inf.readInt(1, 5000, "t");
    int n = inf.readInt(1, 500, "n");
    for (int i = 1; i <= n; ++i)
        a[i] = inf.readInt(1, t, format("a[%d]", i));
    for (int i = 1; i <= n; ++i)
        s[i] = ouf.readInt(0, t - 1, format("s[%d]", i));
    for (int i = 1; i <= n; ++i) {
        if (s[i] + a[i] > t)
            quitf(_wa, "The answer is wrong.");
        for (int j = s[i]; j < s[i] + a[i]; ++j)
            ++mp[j];
    }
    for (int i = 0; i <= t; ++i)
        if (mp[i] > 2)
            quitf(_wa, "The answer is wrong.");
    quitf(_ok, "The answer is correct.");
    return 0;
}