Submission #573427

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Source Code Expand

#include <cstdio>
#include <iostream>
#include <list>
using namespace std;

class Block {
public:
    int start;
    int end;
    Block(int start, int end) {
        this->start = start - start % 5;
        int end2 = 2500 - end;
        int end3 = 2500 - (end2 - end2 % 5);
        if (end3 % 100 == 60) {
            end3 += 40;
        }
        this->end = end3;
    }
};
bool compare(Block& obj1, Block& obj2) {
    return obj1.start <= obj2.start;
}
bool merge(Block& obj1, Block& obj2) {
    if (obj1.end < obj2.start) {
        return false;
    }
    if (obj1.end < obj2.end) {
        obj1.end = obj2.end;
    }
    return true;
}
int main() {
    int n;
    cin >> n;
    list<Block> blocks;
    for (int i = 0; i < n; i++) {
        int start, end;
        scanf("%d-%d", &start, &end);
        Block block(start, end);
        blocks.push_back(block);
    }
    blocks.sort(compare);
    list<Block>::iterator itr;
    itr = blocks.begin();
    Block *prev = &(*itr);
    ++itr;
    while(itr != blocks.end()) {
        bool result;
        result = merge(*prev, *itr);
        if (result) {
            itr = blocks.erase(itr);
        } else {
            prev = &(*itr);
            ++itr;
        }
    }
    itr = blocks.begin();
    while(itr != blocks.end()) {
        printf("%04d-%04d\n", itr->start, itr->end);
        ++itr;
    }
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:38:37: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]

Judge Result