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Submission #1022208

# Submission time Handle Problem Language Result Execution time Memory
1022208 2024-07-13T11:00:41 Z vjudge1 Fountain (eJOI20_fountain) C++17
60 / 100
 1500 ms 8016 KB 
/*
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣀⣤⣤⣶⣶⣶⣶⠦⠶⡶⢦⠤⠤⠤⣄⣀⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣀⣠⣠⣴⣶⣿⣿⣿⣿⣿⣿⣽⣽⣿⣿⣿⣿⣿⣭⣽⣭⣯⡭⡈⢙⣽⣶⣤⣤⣄⣀⣀⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣠⣶⣟⣟⣽⣾⣿⢿⣿⡿⣿⣿⣿⣿⣿⣿⣟⠟⡻⣿⣿⣟⣟⣟⣿⡻⠿⠿⠿⠿⣍⠉⠉⠉⠙⠛⠛⠒⠒⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣠⣶⣿⣿⣿⣿⡿⣾⣿⣯⣿⣿⣿⣽⣿⣷⣽⣿⣿⡿⣿⣿⣾⢿⣿⡷⣿⣿⣿⣿⣯⣭⡅⣠⣹⣢⣄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣴⣿⡿⣿⣟⣽⣿⣿⣿⣻⣿⣟⣟⣿⣻⣿⣝⣿⣯⣿⣻⣻⣿⣿⣿⣿⡪⡻⣿⣿⣽⣿⣿⣯⣻⣿⣶⣿⣖⣓⡤⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣠⠿⢿⣿⣟⣿⣿⣻⣿⣿⣿⠿⣿⣿⡿⣿⣿⢿⣿⡯⣿⣛⣿⣕⣿⣿⡿⣿⣿⣷⢿⡿⣻⣿⣿⣿⢿⣿⣿⡻⣿⡷⠷⠯⠦⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣼⡽⠹⠩⡝⡇⡿⢻⢻⢻⡛⣿⣹⣿⣿⣿⣿⣿⣽⣿⣯⣿⣿⣿⡿⣿⣿⣿⣿⣽⡿⣿⣯⣻⣿⣿⡿⣿⣿⣿⣿⣿⣝⡍⠩⠀⢘⢄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣏⣓⣂⣀⣀⠀⣜⣀⣀⠐⠐⠓⣞⠨⣿⠿⣗⣿⣿⣻⣿⣿⣽⣿⣿⣺⣿⣿⣿⣿⣻⣿⣿⣿⣝⢿⣛⠻⣻⣿⣟⣟⣿⣿⣿⣤⣐⣒⣚⣳⡀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣿⣿⠟⠻⠽⢯⣌⣶⣿⠿⡡⢴⣾⠛⢀⣷⡉⡟⣷⢊⢘⢀⡙⣷⣾⣿⣿⣿⣿⣿⣿⢿⣿⢿⣿⡿⣿⣿⣽⢋⣝⣿⡿⣿⢿⢿⣛⢿⣿⣗⢇⠟⢦⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢾⣿⣿⣉⣉⣉⣸⣿⣿⣉⣉⢉⣿⠷⠶⠀⢸⣿⣿⢿⠀⠀⠀⠀⢸⠀⢀⡷⣿⣿⣿⢿⡿⡇⣿⣉⢾⣿⣿⠰⢶⡶⣿⣿⣿⣿⣹⣿⡀⠹⣿⣿⡹⣉⢷⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣾⣿⡭⣥⣿⣾⣿⣿⣿⣿⣿⣿⣓⡃⠐⠀⣘⣯⣿⣚⣟⢒⣓⣒⣿⣒⢺⣟⣻⡧⡉⣿⡿⠍⡭⢭⠨⠹⢿⣝⢒⡞⠀⡖⣚⢷⣙⢛⣯⣦⠈⠻⢿⣿⣮⣧⡀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢰⣿⣿⢩⣿⣿⣿⣾⣷⣿⣿⣿⣟⠒⠀⠐⠀⠉⡿⡟⠉⠹⣿⣟⣳⣶⣆⣴⠑⠀⢳⡄⠈⣷⡁⠁⠈⠀⢈⠙⣷⠀⣀⣀⣀⠀⢨⣷⠀⠊⣟⢣⠀⠀⠉⠛⠿⣿⣄⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣸⣿⣗⡺⣿⣿⣿⣿⣿⣿⣿⡿⡏⠍⠁⢈⠀⠉⠁⣷⠩⠩⠨⢿⣷⣿⣿⡟⠀⠈⠅⠽⣹⣯⡵⣖⣶⣶⣶⡖⣿⡬⢭⡭⣽⣿⠭⣿⡠⠥⣼⣷⢧⠀⠀⠀⠀⠀⠙⠳⢄⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿⣿⣿⣿⣿⣿⣿⣿⣿⣟⣿⡏⡃⢀⣠⣬⣶⣶⣦⣍⢀⠈⢸⣘⣧⣿⣿⣏⠀⣀⠀⣃⣷⢿⣼⣽⣆⡲⡦⢵⣾⣿⠃⣧⣿⣿⡼⣿⣿⣇⣻⣿⣘⡆⠀⠀⠀⠀⠀⠀⠈⠛
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣸⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⢦⣾⠟⠻⠹⢰⣶⣆⡚⢷⡀⠠⠶⡞⣾⣿⠤⠀⠠⡀⢒⡞⠻⣷⠐⢻⣿⣮⡕⣷⣿⡖⣿⣿⣿⡏⣽⣿⣿⢶⣿⣿⢾⡄⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣿⣽⣿⣿⡯⡿⢿⢽⣽⣮⣯⣯⡟⠬⠅⢡⡀⣠⣽⣿⣧⠵⠁⠀⠀⠇⡍⢿⠀⠀⠤⠀⠏⠩⠬⠹⡤⠀⣿⢝⡿⡯⣾⣯⣿⣟⣯⣖⣺⣿⣕⠽⣯⣿⣬⣽⡀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣾⣿⣻⣿⣿⠷⠿⠿⣻⣿⣟⣿⣿⠆⠁⢠⣿⣿⡽⠿⡿⣿⠀⠀⠀⠀⠀⠉⠋⠀⠀⠀⠀⠒⠉⠊⢈⠋⠁⡋⣻⣿⣿⣿⣿⣿⣿⣿⣿⢿⣿⣷⣿⣿⣟⣹⣿⡆⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣾⣿⡿⣿⣿⣿⣿⡭⢹⣿⣿⣻⣽⣿⡀⠀⢨⡇⠉⠍⢌⠼⠇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠴⣶⢶⠾⢦⣆⠂⠚⣿⣷⣽⡗⣿⡯⣿⠵⢿⣯⣯⣿⣿⣿⣕⣯⣇⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣼⣯⣿⣗⣿⣿⣿⡓⣒⣛⣽⣿⣿⢿⣯⠥⠀⠈⢶⡂⠐⣾⠆⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⠉⢙⣿⣌⣮⠽⣿⣍⢯⣻⣻⣯⠭⠥⣯⠬⣿⣿⣿⣟⣿⣻⣾⣏⢹⡀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣼⣿⣾⣿⣷⣿⣿⡇⡇⠴⣹⣿⣿⣾⣉⢹⣄⡀⠀⠀⠉⠉⠀⠀⠀⠀⠀⠀⣠⡄⠀⠀⠀⠀⣀⣷⣶⣾⣿⣿⠈⠀⡉⣿⢙⣏⢾⣏⡉⡁⡁⣹⣿⣿⣳⣷⣿⣿⢞⣾⡌⡇⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿⣿⣿⣯⣿⣿⣿⣿⣭⠭⢭⣿⣿⣷⡒⢀⡶⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢰⡿⠇⠀⠀⠀⠰⡟⣿⢨⠽⢕⡟⠀⠂⣲⡟⠒⢺⣽⣷⣾⡶⠒⣺⣿⣯⣿⣿⣾⢽⣝⣿⠆⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣸⣿⣿⣿⣿⣟⣿⣿⣿⣧⣚⣾⣚⣿⣿⠬⠤⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠋⠀⠀⠀⠀⠐⣇⠈⢐⢰⡏⠁⠠⢠⡿⠤⣤⣿⣻⣟⣿⠥⣾⣿⣿⣿⣿⣿⣿⡾⡳⣿⡇⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢠⡷⣿⣿⣿⣿⡿⣽⣿⢿⣿⣿⠶⠾⣿⣿⢉⣀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠒⠒⠛⠀⠤⠾⣛⣀⣽⣿⣿⣿⣿⣿⡿⣿⣿⣿⣿⣿⣿⣿⣿⣮⣿⡇⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣼⣯⣿⣿⣿⣿⣫⣫⣿⣿⢕⣿⣭⢹⡿⣿⣷⣐⣀⠂⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠐⣢⣫⣿⣿⣟⣿⣿⣾⣻⣿⣿⣿⣿⣿⣿⣿⣿⣷⢿⡇⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢠⣿⣿⣿⣿⣿⣿⢟⢟⣿⣿⣷⡿⣟⢄⣻⡻⣿⣷⡬⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⣾⣛⣿⣿⡿⣿⣿⣟⢟⣟⣿⣿⣿⣿⣿⣿⣿⣿⣿⡿⡄⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⣿⣿⡿⣿⣿⣿⡗⣽⣿⣿⣿⣿⣕⡽⣍⢯⣿⣿⣿⢅⠠⠀⠀⠀⠀⠉⠙⠂⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣬⣿⣿⣿⣿⣿⣿⣯⢿⣿⣿⡵⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡽⣄⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⡀⠀⠀⠀⠀⢸⣿⣿⠇⢸⣿⣿⣯⣺⣿⣿⣿⣿⣿⣿⣦⢟⣿⣯⣿⣿⣷⣄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣼⣾⣿⣿⣿⣿⣿⣿⣗⣟⣿⣿⣺⡯⢿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣺⡆⠀⠀⠀⠀
⠀⠀⠀⠀⢀⣤⣶⣾⣷⣿⣿⣯⣳⡤⣀⣿⡏⠀⢸⣿⣿⣿⣾⠯⣿⣿⣿⣿⣿⣿⣿⢷⣿⣩⠨⠽⡿⣷⣄⠀⠀⠀⠀⠀⠀⠀⣀⣀⣠⣤⣶⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡿⣿⣿⢏⣀⣻⣿⣿⣿⣿⣿⣿⣿⣾⡿⣿⣯⢿⡀⠀⠀⠀
⠀⢀⣠⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⣟⣖⢤⣘⣿⣿⣿⣷⣽⣿⣿⣿⣿⣿⣿⣷⣗⣭⡿⣬⣭⡯⣭⣿⣿⣿⣿⣿⣽⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣺⣿⣿⣿⣕⢒⣿⣿⣿⣿⣿⣿⣿⣿⣻⣾⡿⣿⣿⣇⠀⠀⠀
⣴⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⣝⢻⡻⣿⣟⣿⢟⡿⣿⣾⣿⣷⣟⢶⠐⢐⣰⣇⣲⣗⣾⢐⣐⣸⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⢽⣟⢽⣿⡺⢩⣿⣿⣿⣿⣿⣿⣿⣿⣿⣟⡯⡾⣿⢽⡄⠀⠀
⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣾⣾⡻⣷⣿⣟⢿⣿⣿⣿⣿⢷⡤⠀⠴⠑⠷⠶⠰⢸⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣯⣻⢿⣿⣿⣿⣿⣿⣿⣿⣻⣿⣯⣼⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⣿⢟⢟⢿⣿⠀⠀
⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣝⣿⣿⣝⣿⣿⣿⣿⣷⣽⣄⠄⠀⠄⠀⣼⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⢝⣿⡆⠙⠿⣿⣿⣿⣿⣺⣺⠟⢰⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣗⣟⢽⠈⢿⡆⠀
⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⢾⣿⣿⣿⣿⣿⣾⣇⡀⠆⢀⣿⣿⣷⣿⣿⣿⣿⢿⣿⠁⠈⣿⣿⣿⢾⡇⠀⠀⠀⠹⣿⡿⣿⣉⣈⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⢏⣏⢾⠀⠀⣇⠀
⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣗⣿⣿⣿⣿⣿⣿⣮⡶⣤⣿⣿⣿⣿⣿⣿⣿⡿⣿⡗⠀⠀⠀⠙⢿⣿⣻⠀⠀⠀⠀⠈⣿⡿⣶⣾⣽⣿⡿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⣿⡏⠀⠀⣼⠀
⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⢽⣿⣿⣿⣿⣿⣿⣿⢿⣿⣿⣿⣵⢝⢵⣿⡯⣯⠃⠀⠀⠀⠀⠀⠙⢿⡄⠀⠀⠀⢰⣿⠗⠉⠙⠿⣮⣧⡈⠻⣿⣿⣿⣿⣿⣿⣿⡯⣮⡇⠀⠀⠀⠀
⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣧⣫⣿⣿⣿⣿⣷⣿⣿⣿⣾⣾⣻⣻⣿⣻⣟⢿⣶⣄⡀⠀⠀⠀⠀⠀⠓⠀⠀⢠⡿⠁⠀⠀⠀⠀⠈⠙⠻⢦⠈⠿⣿⣿⣿⣿⣿⣟⣿⠁⠀⠀⠀⠀
⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⣿⣾⣾⣿⣿⣿⣿⣾⣿⣿⣷⣽⣾⡿⣷⣤⣀⠀⠀⠀⠀⠀⠏⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠓⠀⠈⠻⣿⣿⣿⣷⡏⠀⠀⠀⠀⠀
⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣽⣿⢿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⣿⡿⣿⣷⣆⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⢿⣿⡟⠀⠀⠀⠀⠀⠀
⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡿⡿⣻⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣾⣾⡿⣷⣆⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⢿⠃⠀⠀⠀⠀⠀⠀
⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⢯⣿⣯⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣮⣯⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠋⠀⠀⠀⠀⠀⠀⠀
⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣟⣽⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡷⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣽⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣯⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡏⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣟⣿⠋⠀
*/
// skibidi rizz
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#pragma GCC optimization("unroll-loops")
#pragma ("reroll")
#include<bits/stdc++.h>
#define IOS ios_base::sync_with_stdio(false),cin.tie(NULL),cout.tie()
#define ll long long
#define ull unsigned long long
#define pb push_back
#define endl "\n"
#define int ll
#define F first     
#define S second
#define db double 
#define ld long double
#define short unsigned short
#define pii pair<int,int>
using namespace std;
const   ll inf = 1e18,MOD=1e9+7,N=5e5+10,MN=1e9+7,lim=1e6;
const long db Phi=acos(-1);
ll binpow(int a,int p);
struct res
{
  int d,c;
};
void solve(){
  int n,q;
  cin>>n>>q;
  vector<res>fon(n);
  int flag=1;
  vector<int>pref(n);
  for(int i=0;i<n;i++){
    cin>>fon[i].d>>fon[i].c;
    if(i!=0&&fon[i].d<=fon[i-1].d){
      flag=0;
    }
    if(i!=0){
       pref[i]=pref[i-1]+fon[i].c;
    }
    else{
      pref[i]=fon[i].c;
    }
  }
  // flag=0;
  if(flag==1){
    while(q--){
    int R,V;
    cin>>R>>V;
    int i=R-1;
    int l=i,r=n-1;
    int ans=-1;
    int min=0;
    if(i>0){
      min=pref[i-1];
    }
    while(l<=r){
      int m=(l+r)/2;
      if(pref[m]-min>=V){
        ans=m;
        r=m-1;
      } 
      else{
        l=m+1;
      }
    }
    cout<<ans+1<<endl;
  }
  }
  else{
    while(q--){
    int R,V;
    cin>>R>>V;
    int i=R-1;
    V-=fon[i].c;
    // int ans=0;
    while(V>0){
      // cout<<V<<endl;
      int res=n;
      for(int j=i+1;j<n;j++){
        if(fon[j].d>fon[i].d){
          res=j;
          V-=fon[j].c;
          break;
        }
      }
      if(res==n){
        i=-1;
        break;
      }
      i=res;
    }
    cout<<i+1<<endl;
  }
  }
}     
signed main() {
    IOS;
    srand(time(NULL));
    //freopen("coins.in", "r", stdin);
    //freopen("coins.out", "w", stdout);
    int UwU=1;
    // cin>>UwU;
    for(int i=1;i<=UwU;i++) { 
      // cout<<"Case "<<i<<": ";
        solve();
      // cout<<endl;
    }
}
ll binpow(int a,int p){if(p==0)return 1;if(p%2){return ((binpow(a,p-1)*a)%MOD);}int res=binpow(a,p/2)%MOD; return (res*res)%MOD;}

Compilation message

fountain.cpp:50: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
   50 | #pragma GCC optimization("unroll-loops")
      | 
fountain.cpp:51: warning: ignoring '#pragma ( ' [-Wunknown-pragmas]
   51 | #pragma ("reroll")
      |

Subtask #1
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 4184 KB Output is correct
2 Correct 57 ms 6420 KB Output is correct

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 50 ms 4184 KB Output is correct
9 Correct 57 ms 6420 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1487 ms 3804 KB Output is correct
12 Correct 79 ms 8016 KB Output is correct
13 Execution timed out 1575 ms 4676 KB Time limit exceeded
14 Halted 0 ms 0 KB -