Submission #24901

#	Time	Username	Problem	Language	Result	Execution time	Memory
24901		youngyojun	산악 구조대 (JOI13_mountain)	C++11	20 / 100	14 ms	872 KiB

mountain

#include "grader.h"
#include <stdio.h>
int AnsX, AnsY, X;

bool f1(const int& x1, const int& x2, const int& y1, const int& y2) {
    if(x1 > x2 || y1 > y2) return false;
    if((x2-x1+1) * (y2-y1+1) <= 3) {
        for(int x = x1; x <= x2; x++) for(int y = y1; y <= y2; y++)
            if(X == Measure(x, y)) { AnsX = x; AnsY = y; return true; }
        return false;
    }
    const int midX = (x1+x2)>>1, midY = (y1+y2)>>1;
    const int ret = Measure(midX, midY);
    if(ret == X) { AnsX = midX; AnsY = midY; return true; }
    if(ret < X) return f1(x1, x2, midY+1, y2) || f1(midX+1, x2, y1, midY);
    return f1(x1, midX-1, y1, y2) || f1(midX, x2, y1, midY-1);
}
bool f2(const int& x1, const int& x2, const int& y1, const int& y2) {
    if(x1 > x2 || y1 > y2) return false;
    if((x2-x1+1) * (y2-y1+1) <= 3) {
        for(int x = x1; x <= x2; x++) for(int y = y1; y <= y2; y++)
            if(X == Measure(x, y)) { AnsX = x; AnsY = y; return true; }
        return false;
    }
    const int midX = (x1+x2)>>1, midY = (y1+y2)>>1;
    const int ret = Measure(midX, midY);
    if(ret == X) { AnsX = midX; AnsY = midY; return true; }
    if(ret < X) return f2(x1, x2, y1, midY-1) || f2(midX+1, x2, midY, y2);
    return f2(x1, midX-1, y1, y2) || f2(midX, x2, midY+1, y2);
}
bool f3(const int& x1, const int& x2, const int& y1, const int& y2) {
    if(x1 > x2 || y1 > y2) return false;
    if((x2-x1+1) * (y2-y1+1) <= 3) {
        for(int x = x1; x <= x2; x++) for(int y = y1; y <= y2; y++)
            if(X == Measure(x, y)) { AnsX = x; AnsY = y; return true; }
        return false;
    }
    const int midX = (x1+x2)>>1, midY = (y1+y2)>>1;
    const int ret = Measure(midX, midY);
    if(ret == X) { AnsX = midX; AnsY = midY; return true; }
    if(ret < X) return f3(x1, x2, midY+1, y2) || f3(x1, midX-1, y1, midY);
    return f3(x1, x2, y1, midY-1) || f3(midX+1, x2, midY, y2);
}
bool f4(const int& x1, const int& x2, const int& y1, const int& y2) {
    if(x1 > x2 || y1 > y2) return false;
    if((x2-x1+1) * (y2-y1+1) <= 3) {
        for(int x = x1; x <= x2; x++) for(int y = y1; y <= y2; y++)
            if(X == Measure(x, y)) { AnsX = x; AnsY = y; return true; }
        return false;
    }
    const int midX = (x1+x2)>>1, midY = (y1+y2)>>1;
    const int ret = Measure(midX, midY);
    if(ret == X) { AnsX = midX; AnsY = midY; return true; }
    if(ret < X) return f4(x1, x2, y1, midY-1) || f4(x1, midX-1, midY, y2);
    return f4(x1, x2, midY+1, y2) || f4(midX+1, x2, y1, midY);
}
void Rescue(int R, int C, int RS, int CS, int _X) {
    X = _X;
    if(!(f1(1, RS, 1, CS) || f2(1, RS, CS+1, C) || f3(RS+1, R, 1, CS) || f4(RS+1, R, CS+1, C))) {
        while(1) puts("FUCK!");
    }
    Pinpoint(AnsX, AnsY);
}

• Subtask 1: 20 / 20
• Subtask 2: 0 / 80