제출 #132614

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
132614		alexpetrescu	Cloud Computing (CEOI18_clo)	C++14	100 / 100	303 ms	1400 KiB

clo

#include <cstdio>
#include <algorithm>
#include <vector>

//FILE *fin = fopen("a.in", "r"), *fout = fopen("a.out", "w");
#define fin stdin
#define fout stdout

struct myc {
    int c, f, v, t;
    inline bool operator < (const myc &u) const {
        if (f != u.f) return f < u.f;
        else return t > u.t;
    }
};

long long d[100009];

inline void _(long long &a, long long b) {
    a = std::max(a, b);
}

int main() {
    int calc;
    fscanf(fin, "%d", &calc);

    std::vector < myc > v;
    for (; calc; calc--) {
        int c, f, V;
        fscanf(fin, "%d%d%d", &c, &f, &V);

        v.push_back({c, f, V, 0});
    }

    int coma;
    fscanf(fin, "%d", &coma);

    for (; coma; coma--) {
        int c, f, V;
        fscanf(fin, "%d%d%d", &c, &f, &V);

        v.push_back({c, f, V, 1});
    }

    std::sort(v.begin(), v.end());

    int sumC = 0;
    for (auto &x : v) {
        if (x.t) {
            for (int i = sumC; i >= 0; i--)
                _(d[i + x.c], d[i] + x.v);
            sumC += x.c;
        } else {
            for (int i = 1; i < x.c; i++)
                _(d[0], d[i] - x.v);
            for (int i = x.c; i <= sumC; i++)
                _(d[i - x.c], d[i] - x.v);
        }
    }

    fprintf(fout, "%lld\n", d[0]);

    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

clo.cpp: In function 'int main()':
clo.cpp:25:11: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     fscanf(fin, "%d", &calc);
     ~~~~~~^~~~~~~~~~~~~~~~~~
clo.cpp:30:15: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         fscanf(fin, "%d%d%d", &c, &f, &V);
         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
clo.cpp:36:11: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     fscanf(fin, "%d", &coma);
     ~~~~~~^~~~~~~~~~~~~~~~~~
clo.cpp:40:15: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         fscanf(fin, "%d%d%d", &c, &f, &V);
         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 18 / 18
• Subtask 2: 18 / 18
• Subtask 3: 18 / 18
• Subtask 4: 18 / 18
• Subtask 5: 18 / 18
• Subtask 6: 10 / 10